Q: Is 189,987 a Prime Number?
A: No, 189,987 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 189987 can be evenly divided by 1 3 7 21 83 109 249 327 581 763 1,743 2,289 9,047 27,141 63,329 and 189,987, with no remainder.
Since 189,987 cannot be divided by just 1 and 189,987, it is not a prime number.