Number 266 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 266 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 266 below).

Number of factors: 8.

List of factors/divisors: 1, 2, 7, 14, 19, 38, 133, 266.

Parity: 266 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 214 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 259 no | 260 no | 261 no | 262 no | 263 yes | 264 no | 265 no | 266 no | 267 no | 268 no | 269 yes | 270 no | 271 yes | 272 no | 273 no |
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