Is 437 a prime number?

Prime Number Checker
Number

Is 437 a prime or composite number?

Answer

Number 437 is not a Prime

437 = 19 × 23

437 has 4 divisors — 1, 19, 23 and 437; a prime has exactly two: 1 and itself.

Primes up to √437

20² = 400 ≤ 437 < 441 = 21², so it is enough to try primes up to 20

  • ÷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 divides

437 ÷ 19 = 23 — 19 divides 437, so 437 is composite

Nearest primes: 433 and 439

Related Calculations

See Also

Prime numbers list

NumberIs Prime
415No: 5 × 83
417No: 3 × 139
419Yes
420No: 2² × 3 × 5 × 7
421Yes
423No: 3² × 47
424No: 2³ × 53
425No: 5² × 17
428No: 2² × 107
429No: 3 × 11 × 13
431Yes
432No: 2⁴ × 3³
433Yes
434No: 2 × 7 × 31
436No: 2² × 109
437No: 19 × 23
438No: 2 × 3 × 73
439Yes
441No: 3² × 7²
443Yes
447No: 3 × 149
448No: 2⁶ × 7
449Yes
450No: 2 × 3² × 5²
451No: 11 × 41
453No: 3 × 151
455No: 5 × 7 × 13
457Yes
458No: 2 × 229
459No: 3³ × 17

FAQ

Is 437 a prime or composite number?

Number 437 is not a Prime

How many factors are in a number 437?

4

How to check if 437 is prime?

Divide 437 by the primes in order: 20² = 400 ≤ 437 < 441 = 21², so it is enough to try primes up to 20. The first one that divides it is 19: 437 ÷ 19 = 23, so 437 is composite.

See Also