Factors of 80

The factors of 80 are 1, 2, 4, 5, 8, 10, 16, 20, 40 and 80. That is 10 factors in total.

A factor of 80 is a whole number that divides 80 exactly, with no remainder. 80 is a composite number because it has factors other than 1 and itself.

Factor pairs of 80

Two numbers that multiply to give 80:

1 × 80 = 80
2 × 40 = 80
4 × 20 = 80
5 × 16 = 80
8 × 10 = 80

Prime factorization of 80

80 = 2 × 2 × 2 × 2 × 5 = 2⁴ × 5. The prime factors of 80 are 2 and 5.

Quick facts about 80

Is 80 prime? No.
Even or odd: even.
Sum of its factors: 1 + 2 + 4 + 5 + 8 + 10 + 16 + 20 + 40 + 80 = 186.

Factors of nearby numbers

Number	Factors
76	1, 2, 4, 19, 38, 76
77	1, 7, 11, 77
78	1, 2, 3, 6, 13, 26, 39, 78
79	1, 79
81	1, 3, 9, 27, 81
82	1, 2, 41, 82
83	1, 83
84	1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84

More about 80: 80 squared · square root of 80 · 80 in binary · 80 in Roman numerals.

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