Is 297 a prime number?

Prime Number Checker
Number

Is 297 a prime or composite number?

Answer

Number 297 is not a Prime

297 = 3³ × 11

297 has 8 divisors — 1, 3, 9, 11, 27, 33, 99 and 297; a prime has exactly two: 1 and itself.

Primes up to √297

17² = 289 ≤ 297 < 324 = 18², so it is enough to try primes up to 17

  • ÷2 does not divide
  • ÷3 divides

297 ÷ 3 = 99 — 3 divides 297, so 297 is composite

Nearest primes: 293 and 307

Related Calculations

See Also

Prime numbers list

NumberIs Prime
277Yes
279No: 3² × 31
280No: 2³ × 5 × 7
281Yes
282No: 2 × 3 × 47
283Yes
284No: 2² × 71
285No: 3 × 5 × 19
286No: 2 × 11 × 13
287No: 7 × 41
288No: 2⁵ × 3²
289No: 17²
292No: 2² × 73
293Yes
294No: 2 × 3 × 7²
297No: 3³ × 11
299No: 13 × 23
300No: 2² × 3 × 5²
301No: 7 × 43
302No: 2 × 151
303No: 3 × 101
304No: 2⁴ × 19
305No: 5 × 61
306No: 2 × 3² × 17
307Yes
309No: 3 × 103
310No: 2 × 5 × 31
311Yes
312No: 2³ × 3 × 13
313Yes

FAQ

Is 297 a prime or composite number?

Number 297 is not a Prime

How many factors are in a number 297?

8

How to check if 297 is prime?

Divide 297 by the primes in order: 17² = 289 ≤ 297 < 324 = 18², so it is enough to try primes up to 17. The first one that divides it is 3: 297 ÷ 3 = 99, so 297 is composite.

See Also