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Factors of 1

"Factors of a Number" Calculator

What are the Factors of 1?

Answer

Factors of 1:

1

one factor · neither prime nor composite

Factor pairs of 1

1 pair: 1 × 1

1 × 1 is a pair of one factor — 1 has a single factor.

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Related Calculations

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 1. Factors of 1: full list and factor pairs.

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Factors Table

Number	Factors
1	1
2	1, 2
3	1, 3
4	1, 2, 4
5	1, 5
6	1, 2, 3, 6
7	1, 7
8	1, 2, 4, 8
9	1, 3, 9
10	1, 2, 5, 10
11	1, 11
12	1, 2, 3, 4, 6, 12
13	1, 13
14	1, 2, 7, 14
15	1, 3, 5, 15
16	1, 2, 4, 8, 16
17	1, 17
18	1, 2, 3, 6, 9, 18
19	1, 19
20	1, 2, 4, 5, 10, 20
21	1, 3, 7, 21
22	1, 2, 11, 22
23	1, 23
24	1, 2, 3, 4, 6, 8, 12, 24
25	1, 5, 25
26	1, 2, 13, 26
27	1, 3, 9, 27
28	1, 2, 4, 7, 14, 28
29	1, 29
30	1, 2, 3, 5, 6, 10, 15, 30

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FAQ

What are the Factors of 1?

Factors of 1: 1

How many factors does 1 have?

Number 1 has 1 factor

How many Factor Pairs does 1 have?

Number 1 has 1 factor pair

Is 1 a prime or composite number?

Neither: 1 has a single factor, and a prime needs exactly two.

See Also