Q: Is 678,725 a Prime Number?
A: No, 678,725 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 678725 can be evenly divided by 1 5 17 25 85 425 1,597 7,985 27,149 39,925 135,745 and 678,725, with no remainder.
Since 678,725 cannot be divided by just 1 and 678,725, it is not a prime number.