Q: Is 378,428 a Prime Number?
A: No, 378,428 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 378428 can be evenly divided by 1 2 4 89 178 356 1,063 2,126 4,252 94,607 189,214 and 378,428, with no remainder.
Since 378,428 cannot be divided by just 1 and 378,428, it is not a prime number.