MathQuarryCalculators

Primes / Is 138 prime?

Is 138 a Prime Number?

No138 = 2 x 3 x 23

138 is NOT prime: 2 × 69 = 138. That makes 2 a genuine divisor of 138 beyond 1 and 138 itself. Fully broken down, 138 = 2 × 3 × 23, for 8 divisors total. 138 sits between primes 137 and 139, 1 below and 1 above. 138: 2, 3, 6 divide 138 evenly, checked against 2-12. 138 is even, digit sum 12 for 138, digital root 3 for 138. 138 has 3 primes within 10 of 138.

Factors
1, 2, 3, 6, 23, 46, 69, 138
Number of factors
8
Prime?
No
Prime factorization
2 x 3 x 23
Even or odd
Even
Square
19044
Cube
2628072
Binary
10001010
Hexadecimal
8A
Roman numeral
CXXXVIII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 138 →Factors of 138 →