MathQuarryCalculators

Primes / Is 531 prime?

Is 531 a Prime Number?

No531 = 3^2 x 59

531 is NOT prime: 3 × 177 = 531. That makes 3 a genuine divisor of 531 beyond 1 and 531 itself. Fully broken down, 531 = 3^2 × 59, for 6 divisors total. 531 sits between primes 523 and 541, 8 below and 10 above. 531: 3, 9 divide 531 evenly, checked against 2-12. 531 is odd, digit sum 9 for 531, digital root 9 for 531. 531 has 3 primes within 10 of 531.

Factors
1, 3, 9, 59, 177, 531
Number of factors
6
Prime?
No
Prime factorization
3^2 x 59
Even or odd
Odd
Square
281961
Cube
149721291
Binary
1000010011
Hexadecimal
213
Roman numeral
DXXXI
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 531 →Factors of 531 →