Factors of 990

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What are the Factors of 990?

Answer

Factors of 990:

24 factors: 1, 2, 3, 5, 6 … 330, 495, 990

all 24 factors

1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990

24 factors · 990 = 2 × 3² × 5 × 11 · composite

Underlined — prime: 2, 3, 5, 11 · 1 — neither prime nor composite · others — composite

Factor pairs of 990

1 × 990
2 × 495
3 × 330
5 × 198
6 × 165
9 × 110
10 × 99
11 × 90
15 × 66
18 × 55
22 × 45
30 × 33

√990 ≈ 31.46 — the last pair 30 × 33 sits here; past it pairs repeat.

990 = 2 × 3² × 5 × 11 → (1 + 1) × (2 + 1) × (1 + 1) × (1 + 1) = 24 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 Table

Number	Factors
975	1, 3, 5, 13, 15, 25, 39, 65, 75, 195, 325, 975
976	1, 2, 4, 8, 16, 61, 122, 244, 488, 976
977	1, 977
978	1, 2, 3, 6, 163, 326, 489, 978
979	1, 11, 89, 979
980	1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 49, 70, 98, 140, 196, 245, 490, 980
981	1, 3, 9, 109, 327, 981
982	1, 2, 491, 982
983	1, 983
984	1, 2, 3, 4, 6, 8, 12, 24, 41, 82, 123, 164, 246, 328, 492, 984
985	1, 5, 197, 985
986	1, 2, 17, 29, 34, 58, 493, 986
987	1, 3, 7, 21, 47, 141, 329, 987
988	1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988
989	1, 23, 43, 989
990	1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990
991	1, 991
992	1, 2, 4, 8, 16, 31, 32, 62, 124, 248, 496, 992
993	1, 3, 331, 993
994	1, 2, 7, 14, 71, 142, 497, 994
995	1, 5, 199, 995
996	1, 2, 3, 4, 6, 12, 83, 166, 249, 332, 498, 996
997	1, 997
998	1, 2, 499, 998
999	1, 3, 9, 27, 37, 111, 333, 999
1,000	1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000
1,001	1, 7, 11, 13, 77, 91, 143, 1001
1,005	1, 3, 5, 15, 67, 201, 335, 1005
1,008	1, 2, 3, 4, 6, 7, 8, 9, 12, 14, 16, 18, 21, 24, 28, 36, 42, 48, 56, 63, 72, 84, 112, 126, 144, 168, 252, 336, 504, 1008
1,010	1, 2, 5, 10, 101, 202, 505, 1010

FAQ

What are the Factors of 990?

Factors of 990: 24 factors: 1, 2, 3, 5, 6 … 330, 495, 990

How many factors does 990 have?

Number 990 has 24 factors

How many Factor Pairs does 990 have?

Number 990 has 12 factor pairs

Is 990 a prime or composite number?

Composite: 990 = 2 × 3² × 5 × 11, so it has 24 factors — a prime has exactly two.

How many factors does 990 have excluding 1 and 990?

22 — all 24 factors except 1 and 990.