Q: Is 18,487 a Prime Number?
A: No, 18,487 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 18487 can be evenly divided by 1 7 19 133 139 973 2,641 and 18,487, with no remainder.
Since 18,487 cannot be divided by just 1 and 18,487, it is not a prime number.