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Prime Numbers

Is number 72 a prime number?

Number 72 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 72 as a prime numberbecause it can be written as a product of two smaller natural numbers (check the factors of number 72 below).

Other properties of number 72

Number of factors: 12.

List of factors/divisors: 12346891218243672.

Parity: 72 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: nobecause the sum of its proper divisors is 123 (perfect number is a positive integer that is equal to the sum of its proper divisors).

Number:
Prime number:		65
no		66
no		67
yes		68
no		69
no		70
no		71
yes		72
no		73
yes		74
no		75
no		76
no		77
no		78
no		79
yes

Lists of numbers: List of even numbersList of odd numbersList of prime numbersList of square numbersList of perfect numbers.

Is number 72 a prime number? ENEst-ce que 72 est un nombre premier? FRCzy 72 to liczba pierwsza? PL