Number 273 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 273 as a prime number, because it can be written as a product of two smaller natural numbers (check the factors of number 273 below).

Number of factors: 8.

List of factors/divisors: 1, 3, 7, 13, 21, 39, 91, 273.

Parity: 273 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 175 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number: Prime number: | 266 no | 267 no | 268 no | 269 yes | 270 no | 271 yes | 272 no | 273 no | 274 no | 275 no | 276 no | 277 yes | 278 no | 279 no | 280 no |
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