Q: Is 642,725 a Prime Number?
A: No, 642,725 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 642725 can be evenly divided by 1 5 25 47 235 547 1,175 2,735 13,675 25,709 128,545 and 642,725, with no remainder.
Since 642,725 cannot be divided by just 1 and 642,725, it is not a prime number.