- How many 3 digit numbers are there in total?
- How many 3 digit numbers are there in which all the digits are odd?
- What is the smallest 3 digit number with unique digits?
- What is the smallest natural number?
- Why is 6174 a magic number?
- What are the unique numbers?
- How many numbers can be formed from 3 digits?
- What is largest 3 digit number?
- What is the smallest whole number?
- Which is the smallest 3 digit prime number?
- What is the smallest digit?

## How many 3 digit numbers are there in total?

The total number of positive 3 digit numbers is 900.

For the first digit, you have 4 choices (2, 4, 6, 8); for the second and third digits, you have 5 choices (2, 4, 6, 8 and 0)..

## How many 3 digit numbers are there in which all the digits are odd?

We have to find the number of three digit numbers such that all the three digits of the number are odd. As we know that there are total 10 digits (0-9) out of which five are odd. Hence, the number of such numbers possible are: 5×5×5=5^3=125.

## What is the smallest 3 digit number with unique digits?

102Smallest 3-digit number is 102 with unique digits.

## What is the smallest natural number?

Answer: The smallest natural number is 1.

## Why is 6174 a magic number?

6174 is a harshad number, since it is divisible by the sum of its digits: 6174 is a 7-smooth number, i.e. none of its prime factors are greater than 7. 6174 can be written as the sum of the first three degrees of 18: 183 + 182 + 181 = 5832 + 324 + 18 = 6174.

## What are the unique numbers?

Every number has its on speciality or it has some unique properties. The properties of some Unique Numbers are given below. 4 is the only composite number n which doesn’t divide (n-1)!

## How many numbers can be formed from 3 digits?

This is because you have space for three digits that can be chosen from the set [1,2,3]. So you can make 27 three digit different numbers .

## What is largest 3 digit number?

999The smallest 3-digit number is 100 and the largest 3-digit number is 999.

## What is the smallest whole number?

Which is the smallest whole number? Solution. Zero (0) is the smallest whole number. 4. How many whole numbers are there between 32 and 53?

## Which is the smallest 3 digit prime number?

101Answer: (2) Let us take 101, which is not divided by any of the prime numbers 2,3,5,7…. ∴101 is a prime number. So 101 belongs to the smallest three-digit prime number group.

## What is the smallest digit?

The smallest one-digit number is 1 (one) and greatest one-digit number is 9. All the digits become numbers when used as a number. (ii) There are 90 numbers of two digits. The smallest two-digit number is 10 and greatest two-digit number is 99.