# Is 13 and 23 a prime number?

## Is 13 and 23 a prime number?

The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29.

Is 81 a prime or composite?

Is 81 a Composite Number? Yes, since 81 has more than two factors i.e. 1, 3, 9, 27, 81. In other words, 81 is a composite number because 81 has more than 2 factors.

### Is 51 prime or composite?

Yes, since 51 has more than two factors i.e. 1, 3, 17, 51. In other words, 51 is a composite number because 51 has more than 2 factors.

Is the number 31 a prime or composite?

31 (thirty-one) is the natural number following 30 and preceding 32. It is a prime number.

#### What are the prime numbers of 31?

The factors of 31 are 1 and 31. It’s only expressed as 31 × 1 or 1 × 31. Hence, 31 is a prime number.

Is 51 prime or composite number?

Is 51 a prime number? No, 51 is NOT a prime number because it has more than two factors. 51 is a composite number and can be factored by any of the following numbers: 1, 3, 17, 51. space.

## Is 66 a prime or composite number?

23 is prime, 66 is composite. Is 66 composite or prime? composite 11×6=66 3×22=66 Is the number 66 prime composite or both? 66 is composite. Is the number 66 prime composite or nether? composite Is 66 a prime number or a composite number? As an even number greater than 2, 66 is a composite number.

Is 1 a prime number or composite number?

If the integer has more than two factors then it is called as composite number. 1 is neither a prime nor a composite number. Any even number other than two will be not be a prime number.

### Is 12 prime or composite number?

In the same way, 2, 5, 7, 11, 13, 17 are prime numbers. A composite number has more than two factors, which means apart from getting divided by number 1 and itself, it can also be divided by at least one integer or number. We don’t consider ‘1’ as a composite number. 12 is a composite number because it can be divided by 1,2,3,4,6 and 12.