Is 216 a prime number?

Prime Number Checker
Number

Is 216 a prime or composite number?

Answer

Number 216 is not a Prime

216 = 2³ × 3³

216 has 16 divisors, not two: a prime is divisible only by 1 and itself.

Primes up to √216

14² = 196 ≤ 216 < 225 = 15², so it is enough to try primes up to 14

  • ÷2 divides

216 ÷ 2 = 108 — 2 divides 216, so 216 is composite

Nearest primes: 211 and 223

Related Calculations

See Also

Prime numbers list

NumberIs Prime
200No: 2³ × 5²
201No: 3 × 67
202No: 2 × 101
203No: 7 × 29
204No: 2² × 3 × 17
205No: 5 × 41
206No: 2 × 103
207No: 3² × 23
208No: 2⁴ × 13
209No: 11 × 19
210No: 2 × 3 × 5 × 7
211Yes
213No: 3 × 71
214No: 2 × 107
215No: 5 × 43
216No: 2³ × 3³
217No: 7 × 31
219No: 3 × 73
220No: 2² × 5 × 11
221No: 13 × 17
222No: 2 × 3 × 37
223Yes
225No: 3² × 5²
226No: 2 × 113
227Yes
229Yes
231No: 3 × 7 × 11
232No: 2³ × 29
233Yes
234No: 2 × 3² × 13

FAQ

Is 216 a prime or composite number?

Number 216 is not a Prime

How many factors are in a number 216?

16

How to check if 216 is prime?

Divide 216 by the primes in order: 14² = 196 ≤ 216 < 225 = 15², so it is enough to try primes up to 14. The first one that divides it is 2: 216 ÷ 2 = 108, so 216 is composite.

See Also