Number 156 is not a prime number. It is a composite number.

A prime number is a natural number greater than 1 that is not a product of two smaller natural numbers. We do not consider 156 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 156 below).

Number of factors: 12.

List of factors/divisors: 1, 2, 3, 4, 6, 12, 13, 26, 39, 52, 78, 156.

Parity: 156 is an even number. It means it is divisible by 2 with no remainder.

Perfect square: no (a square number or perfect square is an integer that is the square of an integer).

Perfect number: no, because the sum of its proper divisors is 236 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 149 yes | 150 no | 151 yes | 152 no | 153 no | 154 no | 155 no | 156 no | 157 yes | 158 no | 159 no | 160 no | 161 no | 162 no | 163 yes |
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