Q: Is 42,587 a Prime Number?
A: No, 42,587 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 42587 can be evenly divided by 1 37 1,151 and 42,587, with no remainder.
Since 42,587 cannot be divided by just 1 and 42,587, it is not a prime number.