Factors of 80

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What are the Factors of 80?

Answer

Factors of 80:
1, 2, 4, 5, 8, 10, 16, 20, 40, 80

(number 80 has 10 factors)

Factor Pairs of 80

A Factor Pair of number 80 is a combination of two factors which can be multiplied together to equal 80.

List of all possible Factor Pairs of 80:

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

How to find the Factors of 80

Divide 80 by every whole number from 1 up to 8. Each division without a remainder gives a factor and its pair. There is no point going further: 9 × 9 = 81 is already greater than 80, so any larger divisor would pair with a smaller one you have already checked.

  • 80 ÷ 1 = 80 — factors 1 and 80
  • 80 ÷ 2 = 40 — factors 2 and 40
  • 80 ÷ 3 — remainder 2, not a factor
  • 80 ÷ 4 = 20 — factors 4 and 20
  • 80 ÷ 5 = 16 — factors 5 and 16
  • 80 ÷ 6 — remainder 2, not a factor
  • 80 ÷ 7 — remainder 3, not a factor
  • 80 ÷ 8 = 10 — factors 8 and 10

Why 80 has exactly 10 factors

The count follows from the prime factorization: add 1 to each exponent and multiply. Counting the divisors this way needs no trial division at all, however large the number is.

80 = 24 × 5

(4 + 1) × (1 + 1) = 10

Step-by-step factorization: Prime factors of 80.

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About "Factors of a Number" Calculator

This calculator will help you find all factors of a given number. For example, it can help you find out what are the Factors of 80? (The answer is: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80). Pick the number (e.g. '80'). After that hit the 'Find' button.
The Factors of a number are numbers that divides initial number evenly, with no remainder
"Factors of a Number" Calculator
Factors of

Factors Table

NumberFactors
651, 5, 13, 65
661, 2, 3, 6, 11, 22, 33, 66
671, 67
681, 2, 4, 17, 34, 68
691, 3, 23, 69
701, 2, 5, 7, 10, 14, 35, 70
711, 71
721, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
731, 73
741, 2, 37, 74
751, 3, 5, 15, 25, 75
761, 2, 4, 19, 38, 76
771, 7, 11, 77
781, 2, 3, 6, 13, 26, 39, 78
791, 79
801, 2, 4, 5, 8, 10, 16, 20, 40, 80
811, 3, 9, 27, 81
821, 2, 41, 82
831, 83
841, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84
851, 5, 17, 85
861, 2, 43, 86
871, 3, 29, 87
881, 2, 4, 8, 11, 22, 44, 88
891, 89
901, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
911, 7, 13, 91
921, 2, 4, 23, 46, 92
931, 3, 31, 93
941, 2, 47, 94

FAQ

What are the Factors of 80?

Factors of 80: 1, 2, 4, 5, 8, 10, 16, 20, 40, 80

How many factors does 80 have?

Number 80 has 10 factors

How many Factor Pairs does 80 have?

Number 80 has 5 factor pairs

See Also