Is 148 a prime number?

Prime Number Checker
Number

Is 148 a prime or composite number?

Answer

Number 148 is not a Prime

148 = 2² × 37

148 has 6 divisors — 1, 2, 4, 37, 74 and 148; a prime has exactly two: 1 and itself.

Primes up to √148

12² = 144 ≤ 148 < 169 = 13², so it is enough to try primes up to 12

  • ÷2 divides

148 ÷ 2 = 74 — 2 divides 148, so 148 is composite

Nearest primes: 139 and 149

Related Calculations

See Also

Prime numbers list

NumberIs Prime
133No: 7 × 19
134No: 2 × 67
135No: 3³ × 5
136No: 2³ × 17
137Yes
138No: 2 × 3 × 23
139Yes
140No: 2² × 5 × 7
141No: 3 × 47
142No: 2 × 71
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

FAQ

Is 148 a prime or composite number?

Number 148 is not a Prime

How many factors are in a number 148?

6

How to check if 148 is prime?

Divide 148 by the primes in order: 12² = 144 ≤ 148 < 169 = 13², so it is enough to try primes up to 12. The first one that divides it is 2: 148 ÷ 2 = 74, so 148 is composite.

See Also