Q: Is 678,443 a Prime Number?
A: No, 678,443 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 678443 can be evenly divided by 1 151 4,493 and 678,443, with no remainder.
Since 678,443 cannot be divided by just 1 and 678,443, it is not a prime number.