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Factors of 63

"Factors of a Number" Calculator

What are the Factors of 63?

Answer

Factors of 63:

1, 3, 7, 9, 21, 63

6 factors · 63 = 3² × 7 · composite

Underlined — prime: 3, 7 · 1 — neither prime nor composite · others — composite

Factor pairs of 63

3 pairs: 1 × 63 · 3 × 21 · 7 × 9

Past √63 ≈ 7.94 every pair would repeat one already found — so checking stops at 7.

63 = 3² × 7 → (2 + 1) × (1 + 1) = 6 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 63. Factors of 63: full list and factor pairs.

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Factors Table

Number	Factors
48	1, 2, 3, 4, 6, 8, 12, 16, 24, 48
49	1, 7, 49
50	1, 2, 5, 10, 25, 50
51	1, 3, 17, 51
52	1, 2, 4, 13, 26, 52
53	1, 53
54	1, 2, 3, 6, 9, 18, 27, 54
55	1, 5, 11, 55
56	1, 2, 4, 7, 8, 14, 28, 56
57	1, 3, 19, 57
58	1, 2, 29, 58
59	1, 59
60	1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60
61	1, 61
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
66	1, 2, 3, 6, 11, 22, 33, 66
67	1, 67
68	1, 2, 4, 17, 34, 68
69	1, 3, 23, 69
70	1, 2, 5, 7, 10, 14, 35, 70
71	1, 71
72	1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72
73	1, 73
74	1, 2, 37, 74
75	1, 3, 5, 15, 25, 75
76	1, 2, 4, 19, 38, 76
77	1, 7, 11, 77

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FAQ

What are the Factors of 63?

Factors of 63: 1, 3, 7, 9, 21, 63

How many factors does 63 have?

Number 63 has 6 factors

How many Factor Pairs does 63 have?

Number 63 has 3 factor pairs

Is 63 a prime or composite number?

Composite: 63 = 3² × 7, so it has 6 factors — a prime has exactly two.

How many factors does 63 have excluding 1 and 63?

4: 3, 7, 9 and 21.