Q: Is 378,355 a Prime Number?
A: No, 378,355 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 378355 can be evenly divided by 1 5 31 155 2,441 12,205 75,671 and 378,355, with no remainder.
Since 378,355 cannot be divided by just 1 and 378,355, it is not a prime number.