Number 218 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 218 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 218 below).

Number of factors: 4.

List of factors/divisors: 1, 2, 109, 218.

Parity: 218 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 112 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 211 yes | 212 no | 213 no | 214 no | 215 no | 216 no | 217 no | 218 no | 219 no | 220 no | 221 no | 222 no | 223 yes | 224 no | 225 no |
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