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Is 501 a prime number?

Prime Number Checker

Is 501 a prime or composite number?

Answer

Number 501 is not a Prime

501 = 3 × 167

501 has 4 divisors — 1, 3, 167 and 501; a prime has exactly two: 1 and itself.

Primes up to √501

22² = 484 ≤ 501 < 529 = 23², so it is enough to try primes up to 22

÷2 does not divide
÷3 divides

501 ÷ 3 = 167 — 3 divides 501, so 501 is composite

Nearest primes: 499 and 503

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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 501 a prime number? Is 501 a prime number? 501 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
474	No: 2 × 3 × 79
475	No: 5² × 19
477	No: 3² × 53
478	No: 2 × 239
481	No: 13 × 37
482	No: 2 × 241
487	Yes
488	No: 2³ × 61
489	No: 3 × 163
491	Yes
492	No: 2² × 3 × 41
493	No: 17 × 29
495	No: 3² × 5 × 11
499	Yes
500	No: 2² × 5³
501	No: 3 × 167
503	Yes
504	No: 2³ × 3² × 7
505	No: 5 × 101
507	No: 3 × 13²
508	No: 2² × 127
509	Yes
511	No: 7 × 73
512	No: 2⁹
513	No: 3³ × 19
514	No: 2 × 257
515	No: 5 × 103
517	No: 11 × 47
518	No: 2 × 7 × 37
523	Yes

FAQ

Is 501 a prime or composite number?

Number 501 is not a Prime

How many factors are in a number 501?

4

How to check if 501 is prime?

Divide 501 by the primes in order: 22² = 484 ≤ 501 < 529 = 23², so it is enough to try primes up to 22. The first one that divides it is 3: 501 ÷ 3 = 167, so 501 is composite.