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Is 790 a prime number?

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Is 790 a prime or composite number?

Answer

Number 790 is not a Prime

790 = 2 × 5 × 79

790 has 8 divisors — 1, 2, 5, 10, 79, 158, 395 and 790; a prime has exactly two: 1 and itself.

Primes up to √790

28² = 784 ≤ 790 < 841 = 29², so it is enough to try primes up to 28

÷2 divides

790 ÷ 2 = 395 — 2 divides 790, so 790 is composite

Nearest primes: 787 and 797

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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 790 a prime number? Is 790 a prime number? 790 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
756	No: 2² × 3³ × 7
757	Yes
759	No: 3 × 11 × 23
761	Yes
767	No: 13 × 59
769	Yes
771	No: 3 × 257
773	Yes
775	No: 5² × 31
776	No: 2³ × 97
777	No: 3 × 7 × 37
779	No: 19 × 41
783	No: 3³ × 29
785	No: 5 × 157
787	Yes
790	No: 2 × 5 × 79
791	No: 7 × 113
795	No: 3 × 5 × 53
797	Yes
801	No: 3² × 89
803	No: 11 × 73
809	Yes
811	Yes
812	No: 2² × 7 × 29
813	No: 3 × 271
817	No: 19 × 43
819	No: 3² × 7 × 13
821	Yes
822	No: 2 × 3 × 137
823	Yes

FAQ

Is 790 a prime or composite number?

Number 790 is not a Prime

How many factors are in a number 790?

8

How to check if 790 is prime?

Divide 790 by the primes in order: 28² = 784 ≤ 790 < 841 = 29², so it is enough to try primes up to 28. The first one that divides it is 2: 790 ÷ 2 = 395, so 790 is composite.