MathQuarryCalculators

Primes / Is 247 prime?

Is 247 a Prime Number?

No247 = 13 x 19

247 is NOT prime: 13 × 19 = 247. That makes 13 a genuine divisor of 247 beyond 1 and 247 itself. Fully broken down, 247 = 13 × 19, for 4 divisors total. 247 sits between primes 241 and 251, 6 below and 4 above. 247 shares no factor with 2-12; 247's divisors start beyond that range. 247 is odd, digit sum 13 for 247, digital root 4 for 247. 247 has 4 primes within 10 of 247.

Factors
1, 13, 19, 247
Number of factors
4
Prime?
No
Prime factorization
13 x 19
Even or odd
Odd
Square
61009
Cube
15069223
Binary
11110111
Hexadecimal
F7
Roman numeral
CCXLVII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 247 →Factors of 247 →