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Is 989 a prime number?

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Is 989 a prime or composite number?

Answer

Number 989 is not a Prime

989 = 23 × 43

989 has 4 divisors — 1, 23, 43 and 989; a prime has exactly two: 1 and itself.

Primes up to √989

31² = 961 ≤ 989 < 1,024 = 32², so it is enough to try primes up to 31

÷2 does not divide
÷3 does not divide
÷5 does not divide
÷7 does not divide
÷11 does not divide
÷13 does not divide
÷17 does not divide
÷19 does not divide
÷23 divides

989 ÷ 23 = 43 — 23 divides 989, so 989 is composite

Nearest primes: 983 and 991

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See Also

Factors of a Number - List all Factors and Factor Pairs of a Number
Prime Factorization - Prime Factorization Calculator
Prime Numbers List - List of all Prime Numbers - how many Prime numbers are between

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Is 989 a prime number? Is 989 a prime number? 989 is a composite number. Check if any number is prime or composite with our free online prime checker.

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Prime numbers list

Number	Is Prime
962	No: 2 × 13 × 37
963	No: 3² × 107
964	No: 2² × 241
967	Yes
970	No: 2 × 5 × 97
971	Yes
973	No: 7 × 139
977	Yes
978	No: 2 × 3 × 163
979	No: 11 × 89
980	No: 2² × 5 × 7²
983	Yes
986	No: 2 × 17 × 29
987	No: 3 × 7 × 47
988	No: 2² × 13 × 19
989	No: 23 × 43
990	No: 2 × 3² × 5 × 11
991	Yes
993	No: 3 × 331
994	No: 2 × 7 × 71
996	No: 2² × 3 × 83
997	Yes
999	No: 3³ × 37
1,000	No: 2³ × 5³
1,001	No: 7 × 11 × 13
1,005	No: 3 × 5 × 67
1,010	No: 2 × 5 × 101
1,015	No: 5 × 7 × 29
1,020	No: 2² × 3 × 5 × 17
1,025	No: 5² × 41

FAQ

Is 989 a prime or composite number?

Number 989 is not a Prime

How many factors are in a number 989?

4

How to check if 989 is prime?

Divide 989 by the primes in order: 31² = 961 ≤ 989 < 1,024 = 32², so it is enough to try primes up to 31. The first one that divides it is 23: 989 ÷ 23 = 43, so 989 is composite.