Factors of 72

The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36 and 72. That is 12 factors in total.

A factor of 72 is a whole number that divides 72 exactly, with no remainder. 72 is a composite number because it has factors other than 1 and itself.

Factor pairs of 72

Two numbers that multiply to give 72:

1 × 72 = 72
2 × 36 = 72
3 × 24 = 72
4 × 18 = 72
6 × 12 = 72
8 × 9 = 72

Prime factorization of 72

72 = 2 × 2 × 2 × 3 × 3 = 2³ × 3². The prime factors of 72 are 2 and 3.

Quick facts about 72

Is 72 prime? No.
Even or odd: even.
Sum of its factors: 1 + 2 + 3 + 4 + 6 + 8 + 9 + 12 + 18 + 24 + 36 + 72 = 195.

Factors of nearby numbers

Number	Factors
68	1, 2, 4, 17, 34, 68
69	1, 3, 23, 69
70	1, 2, 5, 7, 10, 14, 35, 70
71	1, 71
73	1, 73
74	1, 2, 37, 74
75	1, 3, 5, 15, 25, 75
76	1, 2, 4, 19, 38, 76

More about 72: 72 squared · square root of 72 · 72 in binary · 72 in Roman numerals.

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