Q: Is 678,429 a Prime Number?
A: No, 678,429 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 678429 can be evenly divided by 1 3 9 27 25,127 75,381 226,143 and 678,429, with no remainder.
Since 678,429 cannot be divided by just 1 and 678,429, it is not a prime number.