Is 159 a prime number?

Prime Number Checker
Number

Is 159 a prime or composite number?

Answer

Number 159 is not a Prime

159 = 3 × 53

159 has 4 divisors — 1, 3, 53 and 159; a prime has exactly two: 1 and itself.

Primes up to √159

12² = 144 ≤ 159 < 169 = 13², so it is enough to try primes up to 12

  • ÷2 does not divide
  • ÷3 divides

159 ÷ 3 = 53 — 3 divides 159, so 159 is composite

Nearest primes: 157 and 163

Related Calculations

See Also

Prime numbers list

NumberIs Prime
143No: 11 × 13
144No: 2⁴ × 3²
145No: 5 × 29
146No: 2 × 73
147No: 3 × 7²
148No: 2² × 37
149Yes
150No: 2 × 3 × 5²
151Yes
152No: 2³ × 19
153No: 3² × 17
154No: 2 × 7 × 11
156No: 2² × 3 × 13
157Yes
158No: 2 × 79
159No: 3 × 53
161No: 7 × 23
162No: 2 × 3⁴
163Yes
167Yes
169No: 13²
170No: 2 × 5 × 17
171No: 3² × 19
173Yes
174No: 2 × 3 × 29
175No: 5² × 7
177No: 3 × 59
179Yes
180No: 2² × 3² × 5
181Yes

FAQ

Is 159 a prime or composite number?

Number 159 is not a Prime

How many factors are in a number 159?

4

How to check if 159 is prime?

Divide 159 by the primes in order: 12² = 144 ≤ 159 < 169 = 13², so it is enough to try primes up to 12. The first one that divides it is 3: 159 ÷ 3 = 53, so 159 is composite.

See Also