What is the smallest 3 digit number?
Last Updated :
11 Apr, 2025
The method to represent the numbers or work with numbers is known as the number system. A number system is a mathematical representation of numbers or expressing numbers. It can be also defined as the mathematical notation that is used to represent numbers of a given set by using symbols/digits. It allows for the operation of arithmetic operations such as division, multiplication, addition, and subtraction.
The most commonly used Number system is the decimal number system, the decimal referring to the use of 10 numbers 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 to construct all the required numbers. Some important number systems are as follows,
- Decimal Number System
- Binary Number System
- Octal Number System
- Hexadecimal Number System
What is the smallest number of three digits?
Answer:
The Smallest three-digit number in the number system is 100. The smallest 3 digit number in the number system is 100 because if 1 is subtracted from the number it becomes a 2 digit number which is 99 (a two-digit number). So 100 is the smallest 3 digit number in the number system.
Smallest three digit number in the number system = 100
= 100 - 1
= 99 (which is a 2 digit number)
Hence it is proved that 100 is the smallest three-digit number.
What is the smallest 3-digit number if all digits are unique?
Answer:
As in the above explanation that 100 is the smallest 3 digit number in the number system. Find the smallest 3 digit number will all be unique digits. First, write the numbers which have 3-digits starting from 100 and then look for the smallest 3-digit number with all unique digits.
Thus we get,
100, 101, 102, 103, 104, 105, 106, 107…
Next, find the number which has all the unique digits in it.
Explanation - In number 100, the digit 0 is repeating two times. So, 100 is not considered. Next, check for the number 101, in which 1 is repeating twice hence it is not considered. Next, consider the number 102, as no digits are repeated and it has all the 3 unique digits.
- 100 - (Digit 0 is repeating twice)
- 101 - (Digit 1 is repeating twice)
- 102 - (All digits are unique)
Thus, 102 is the smallest 3-digit number with all its unique digits.
Similar Problems
Question 1: What is the smallest 1 digit number?
Answer:
The smallest 1 digit number in the number system is 0.
Question 2: What is the largest 1 digit number?
Answer:
Largest 1 digit number in the number system 9.
Question 3: What is the smallest 2 digit number?
Answer:
Smallest 2 digit number in the number system is 10.
Question 4: What is the largest 2 digit number?
Answer:
Largest 2 digit number in the number system 99.
Question 5: What is the smallest 4 digit number?
Answer:
The smallest 4 digit number in the number system is 1000, if 1 is subtracted from the number it becomes 3 digit number that is 999 (Three digit number). So 1000 is the smallest 4 digit number in the number system.
Smallest 4 digit number = 1000
= 1000 - 1
= 999 (Which is 3 digit number)
So it is proved 1000 is the smallest 4 digit number in the number system.
Question 6: What is the largest 4 digit number?
Answer:
The largest 4 digit number in the number system is 9999. If +1 is added to the number (9999) it becomes 5 digit number that is 10000 (a five-digit number). So 9999 is the largest 4 digit number in the number system.
Largest 4 digit number = 9999
= 9999 + 1
= 10000 (Which is 5 digit number)
So it is proved the 9999 is the largest 4 digit number in the number system.
Question 7: What is the smallest 5 digit number?
Answer:
The smallest 5 digit number in the number system is 10000, if we subtract -1 from the number it becomes 4 digit number that is 9999 (Four-digit number). So 10000 is the smallest 5 digit number in the number system.
Smallest 5 digit number = 10000
= 10000 - 1
= 9999 (Which is 4 digit number)
So it is proved the 10000 is the smallest 5 digit number in the number system.
Question 8: What is the largest 5 digit number?
Answer:
The largest 5 digit number in the number system is 99999, If 1 is added +1 to the number ( 99999 ) it becomes 5 digit number that is 100000 (Six-digit number). So 99999 is the largest 5 digit number in the number system.
Largest 5 digit number = 99999
= 99999 + 1
= 100000 (Which is 6 digit number)
So it is proved the 99999 is the largest 5 digit number in the number system.
What is the smallest 3 digit number - Similar Problems
Question 1: What is the smallest 1-digit number?
Answer: The smallest 1-digit number in the number system is 0.
Question 2: What is the largest 1-digit number?
Answer: The largest 1-digit number in the number system is 9.
Question 3: What is the smallest 2-digit number?
Answer: The smallest 2-digit number in the number system is 10.
Question 4: What is the largest 2-digit number?
Answer: The largest 2-digit number in the number system is 99.
Question 5: What is the smallest 4-digit number?
Answer: The smallest 4-digit number in the number system is 1000. If 1 is subtracted from the number, it becomes a 3-digit number, which is 999. Hence, 1000 is the smallest 4-digit number.
Smallest 4-digit number = 1000
1000 - 1 = 999 (a 3-digit number)
Thus, it is proven that 1000 is the smallest 4-digit number.
Similar Reads
Similar Reads
What is the smallest 4 digit number?
The method to represent and work with numbers is known as the number system. A number system is a system of writing to represent numbers. It is the mathematical notation used to represent numbers of a given set by using digits or other symbols. It has arithmetic operations to perform division, multi
5 min read
What is the smallest 3 digit prime number?
The smallest 3 digit prime number is 101. Prime Number is a number which is only divisible by 1 and the number itself. It has only 2 factors. Let's find the smallest 3 digit prime number in this article below. Smallest 3 digit Prime NumberThe smallest 3 digit prime number is 101. A prime number has
6 min read
What is the smallest 3 digit number with unique digits?
In our daily lives, we use numbers. They are frequently referred to as numerals. We can’t count objects, date, time, money, or anything else without numbers. These numerals are sometimes used for measurement and other times for labeling. Numbers have features that allow them to conduct arithmetic op
5 min read
What are the largest and smallest 10-digit numbers?
The method to represent and work with numbers is known as the number system. A number system is a system of writing to represent numbers. It is the mathematical notation used to represent numbers of a given set by using digits or other symbols. It has arithmetic operations to perform division, multi
4 min read
Which is the smallest whole number?
Numerals are the mathematical figures used in financial, professional as well as a social field in the social world. The digits and place value in the number and the base of the number system determine the value of a number. Numbers are used in various mathematical operations as summation, subtracti
5 min read
What is the Greatest 4 Digit Number
9999 is the greatest 4 Digit Number. To find the greatest 4-digit number, we need to maximize the value of each digit .9 is the highest value a single digit can have. So, the largest 4-digit number is formed by placing the digit '9' in each of the four places: thousands, hundreds, tens, and ones. In
3 min read
Finding the Smallest Number Among Three in R
Writing a function to determine the smallest number among three given numbers in R is a fundamental exercise in understanding how to work with functions, control structures, and basic comparisons in R. This task can be broken down into several key components, each of which will be discussed in detai
3 min read
What is the biggest 3 digit number in decimal system?
The method to represent and work with numbers is known as the number system. A number system is a system of writing to represent numbers. It is the mathematical notation used to represent numbers of a given set by using digits or other symbols. It allows us to operate arithmetic operations such as d
5 min read
What is the largest 3 digit whole number?
Numerals are the mathematical figures used in financial, professional as well as a social field in the social world. The digits and place value in the number and the base of the number system determine the value of a number. Numbers are used in various mathematical operations as summation, subtracti
5 min read
What is a Number System?
A number system is a way of writing numbers using specific symbols or digits. It helps us represent numbers mathematically. There are different types of number systems, such as the decimal system, binary system, octal system, and hexadecimal system.Here, we will discuss the types of number systems i
4 min read