Factors of 66

The factors of 66 are 1, 2, 3, 6, 11, 22, 33 and 66. That is 8 factors in total.

A factor of 66 is a whole number that divides 66 exactly, with no remainder. 66 is a composite number because it has factors other than 1 and itself.

Factor pairs of 66

Two numbers that multiply to give 66:

1 × 66 = 66
2 × 33 = 66
3 × 22 = 66
6 × 11 = 66

Prime factorization of 66

66 = 2 × 3 × 11. The prime factors of 66 are 2, 3 and 11.

Quick facts about 66

Is 66 prime? No.
Even or odd: even.
Sum of its factors: 1 + 2 + 3 + 6 + 11 + 22 + 33 + 66 = 144.

Factors of nearby numbers

Number	Factors
62	1, 2, 31, 62
63	1, 3, 7, 9, 21, 63
64	1, 2, 4, 8, 16, 32, 64
65	1, 5, 13, 65
67	1, 67
68	1, 2, 4, 17, 34, 68
69	1, 3, 23, 69
70	1, 2, 5, 7, 10, 14, 35, 70

More about 66: 66 squared · square root of 66 · 66 in binary · 66 in Roman numerals.

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