Q: Is 445,428 a Prime Number?
A: No, 445,428 is not a prime number.
A prime number is a natural number, greater than one, that can only be divided by 1 and itself.
The number 445428 can be evenly divided by 1 2 3 4 6 9 12 18 36 12,373 24,746 37,119 49,492 74,238 111,357 148,476 222,714 and 445,428, with no remainder.
Since 445,428 cannot be divided by just 1 and 445,428, it is not a prime number.