Q: Is 687,988 a Prime Number?
A: No, 687,988 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 687988 can be evenly divided by 1 2 4 7 14 28 24,571 49,142 98,284 171,997 343,994 and 687,988, with no remainder.
Since 687,988 cannot be divided by just 1 and 687,988, it is not a prime number.