Factors of 1000

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What are the Factors of 1,000?

Answer

Factors of 1,000:

1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000

16 factors · 1000 = 2³ × 5³ · composite

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

Factor pairs of 1,000

1 × 1000
2 × 500
4 × 250
5 × 200
8 × 125
10 × 100
20 × 50
25 × 40

√1000 ≈ 31.62 — the last pair 25 × 40 sits here; past it pairs repeat.

1000 = 2³ × 5³ → (3 + 1) × (3 + 1) = 16 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
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
1,015	1, 5, 7, 29, 35, 145, 203, 1015
1,020	1, 2, 3, 4, 5, 6, 10, 12, 15, 17, 20, 30, 34, 51, 60, 68, 85, 102, 170, 204, 255, 340, 510, 1020
1,024	1, 2, 4, 8, 16, 32, 64, 128, 256, 512, 1024
1,025	1, 5, 25, 41, 205, 1025
1,026	1, 2, 3, 6, 9, 18, 19, 27, 38, 54, 57, 114, 171, 342, 513, 1026
1,030	1, 2, 5, 10, 103, 206, 515, 1030
1,035	1, 3, 5, 9, 15, 23, 45, 69, 115, 207, 345, 1035
1,040	1, 2, 4, 5, 8, 10, 13, 16, 20, 26, 40, 52, 65, 80, 104, 130, 208, 260, 520, 1040
1,045	1, 5, 11, 19, 55, 95, 209, 1045
1,050	1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 25, 30, 35, 42, 50, 70, 75, 105, 150, 175, 210, 350, 525, 1050

FAQ

What are the Factors of 1,000?

Factors of 1,000: 1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250, 500, 1000

How many factors does 1,000 have?

Number 1,000 has 16 factors

How many Factor Pairs does 1,000 have?

Number 1,000 has 8 factor pairs

Is 1,000 a prime or composite number?

Composite: 1000 = 2³ × 5³, so it has 16 factors — a prime has exactly two.

How many factors does 1,000 have excluding 1 and 1,000?

14: 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 125, 200, 250 and 500.