MathQuarryCalculators

Primes / Is 441 prime?

Is 441 a Prime Number?

No441 = 3^2 x 7^2

441 is NOT prime: 3 × 147 = 441. That makes 3 a genuine divisor of 441 beyond 1 and 441 itself. Fully broken down, 441 = 3^2 × 7^2, for 9 divisors total. 441 sits between primes 439 and 443, 2 below and 2 above. 441: 3, 7, 9 divide 441 evenly, checked against 2-12. 441 is odd, digit sum 9 for 441, digital root 9 for 441. 441 has 5 primes within 10 of 441.

Factors
1, 3, 7, 9, 21, 49, 63, 147, 441
Number of factors
9
Prime?
No
Prime factorization
3^2 x 7^2
Even or odd
Odd
Square
194481
Cube
85766121
Binary
110111001
Hexadecimal
1B9
Roman numeral
CDXLI
Perfect square?
Yes
Perfect cube?
No
Perfect number?
No
Triangular number?
No
Fibonacci number?
No
Full facts for 441 →Factors of 441 →