# Is 27 and 31 a prime number?

## Is 27 and 31 a prime number?

Prime numbers list. List of prime numbers up to 100: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97.

## Is 31 a prime composite number?

Is 31 a Composite Number? No, since 31 has only two factors, i.e. 1 and 31. In other words, 31 is not a composite number because 31 doesn’t have more than 2 factors.

Is 27 a composite factor?

The sum of all factors of 27 is 40. Its Prime Factors are 1, 3, 9, 27, and (1, 27) and (3, 9) are Pair Factors….Factors of 27 in Pairs.

Factors Pair Factors
3 × 9 = 27 3, 9
9 × 3 = 27 9, 3
27 × 1 = 27 27, 1

### Is 30 prime or composite?

Is 30 a Composite Number? Yes, since 30 has more than two factors i.e. 1, 2, 3, 5, 6, 10, 15, 30. In other words, 30 is a composite number because 30 has more than 2 factors.

### Is 95 composite or prime?

Is 95 a Composite Number? Yes, since 95 has more than two factors i.e. 1, 5, 19, 95. In other words, 95 is a composite number because 95 has more than 2 factors.

Is 31 a compound number?

Explanation: 31 is a prime number because the only numbers (factors) that can be multiplied to make 31 is 1 , and 31 . If it happened to have more then two numbers however (like if it had 1, 31, 2, and 7) then it would be a composite number.

#### Is 13 prime composite or neither?

Yes, 13 is a prime number. The number 13 is divisible only by 1 and the number itself. For a number to be classified as a prime number, it should have exactly two factors. Since 13 has exactly two factors, i.e. 1 and 13, it is a prime number.

#### What two numbers make 27?

1 x 27 = 27. 3 x 9 = 27. 9 x 3 = 27.

Is there any formula for prime numbers?

Apart from 2 and 3, every prime number can be written in the form of 6n + 1 or 6n – 1, where n is a natural number. Note: These both are the general formula to find the prime numbers.