Is 169 a prime number?

Prime Number Checker
Number

Is 169 a prime or composite number?

Answer

Number 169 is not a Prime

169 = 13²

169 has 3 divisors — 1, 13 and 169; a prime has exactly two: 1 and itself. It is a perfect square.

Primes up to √169

13² = 169 ≤ 169 < 196 = 14², so it is enough to try primes up to 13

  • ÷2 does not divide
  • ÷3 does not divide
  • ÷5 does not divide
  • ÷7 does not divide
  • ÷11 does not divide
  • ÷13 divides

169 ÷ 13 = 13 — 13 divides 169, so 169 is composite

Nearest primes: 167 and 173

Related Calculations

See Also

Prime numbers list

NumberIs Prime
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
182No: 2 × 7 × 13
183No: 3 × 61
184No: 2³ × 23
186No: 2 × 3 × 31
187No: 11 × 17

FAQ

Is 169 a prime or composite number?

Number 169 is not a Prime

How many factors are in a number 169?

3

How to check if 169 is prime?

Divide 169 by the primes in order: 13² = 169 ≤ 169 < 196 = 14², so it is enough to try primes up to 13. The first one that divides it is 13: 169 ÷ 13 = 13, so 169 is composite.

See Also