Number 205 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 205 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 205 below).

Number of factors: 4.

List of factors/divisors: 1, 5, 41, 205.

Parity: 205 is an odd number.

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 47 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 198 no | 199 yes | 200 no | 201 no | 202 no | 203 no | 204 no | 205 no | 206 no | 207 no | 208 no | 209 no | 210 no | 211 yes | 212 no |
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