Number 318 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 318 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 318 below).

Number of factors: 8.

List of factors/divisors: 1, 2, 3, 6, 53, 106, 159, 318.

Parity: 318 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 330 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 311 yes | 312 no | 313 yes | 314 no | 315 no | 316 no | 317 yes | 318 no | 319 no | 320 no | 321 no | 322 no | 323 no | 324 no | 325 no |
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