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Primes / Is 408 prime?

Is 408 a Prime Number?

No408 = 2^3 x 3 x 17

408 is NOT prime: 2 × 204 = 408. That makes 2 a genuine divisor of 408 beyond 1 and 408 itself. Fully broken down, 408 = 2^3 × 3 × 17, for 16 divisors total. 408 sits between primes 401 and 409, 7 below and 1 above. 408: 2, 3, 4, 6, 8, 12 divide 408 evenly, checked against 2-12. 408 is even, digit sum 12 for 408, digital root 3 for 408. 408 has 2 primes within 10 of 408.

Factors
1, 2, 3, 4, 6, 8, 12, 17, 24, 34, 51, 68, 102, 136, 204, 408
Number of factors
16
Prime?
No
Prime factorization
2^3 x 3 x 17
Even or odd
Even
Square
166464
Cube
67917312
Binary
110011000
Hexadecimal
198
Roman numeral
CDVIII
Perfect square?
No
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 408 →Factors of 408 →