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Factors of 100

"Factors of a Number" Calculator

What are the Factors of 100?

Answer

Factors of 100:

1, 2, 4, 5, 10, 20, 25, 50, 100

9 factors · 100 = 2² × 5² · composite

Underlined — prime: 2, 5 · 1 — neither prime nor composite · others — composite

Factor pairs of 100

5 pairs: 1 × 100 · 2 × 50 · 4 × 25 · 5 × 20 · 10 × 10

10 × 10 is a pair of one factor — that is why 100 has an odd number of factors, 9.

100 = 2² × 5² → (2 + 1) × (2 + 1) = 9 factors: add 1 to each exponent and multiply.

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See Also

Prime Number Checker - Find out whether a given number is Prime or not
Prime Factorization - Prime Factorization Calculator
Prime Numbers List - List of all Prime Numbers - how many Prime numbers are between

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Factors of 100. Factors of 100: full list and factor pairs.

https://calculat.io/en/number/factors-of/100/generated.jpg

Factors Table

Number	Factors
85	1, 5, 17, 85
86	1, 2, 43, 86
87	1, 3, 29, 87
88	1, 2, 4, 8, 11, 22, 44, 88
89	1, 89
90	1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
91	1, 7, 13, 91
92	1, 2, 4, 23, 46, 92
93	1, 3, 31, 93
94	1, 2, 47, 94
95	1, 5, 19, 95
96	1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 96
97	1, 97
98	1, 2, 7, 14, 49, 98
99	1, 3, 9, 11, 33, 99
100	1, 2, 4, 5, 10, 20, 25, 50, 100
101	1, 101
102	1, 2, 3, 6, 17, 34, 51, 102
103	1, 103
104	1, 2, 4, 8, 13, 26, 52, 104
105	1, 3, 5, 7, 15, 21, 35, 105
106	1, 2, 53, 106
107	1, 107
108	1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108
109	1, 109
110	1, 2, 5, 10, 11, 22, 55, 110
111	1, 3, 37, 111
112	1, 2, 4, 7, 8, 14, 16, 28, 56, 112
113	1, 113
114	1, 2, 3, 6, 19, 38, 57, 114

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FAQ

What are the Factors of 100?

Factors of 100: 1, 2, 4, 5, 10, 20, 25, 50, 100

How many factors does 100 have?

Number 100 has 9 factors

How many Factor Pairs does 100 have?

Number 100 has 5 factor pairs

Is 100 a prime or composite number?

Composite: 100 = 2² × 5², so it has 9 factors — a prime has exactly two.

How many factors does 100 have excluding 1 and 100?

7: 2, 4, 5, 10, 20, 25 and 50.

Why does 100 have an odd number of factors?

100 is a perfect square: in the pair 10 × 10 the factor 10 pairs with itself, so the 9 factors are 4 pairs plus 10.