Q: Is 511,987 a Prime Number?
A: No, 511,987 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 511987 can be evenly divided by 1 7 73,141 and 511,987, with no remainder.
Since 511,987 cannot be divided by just 1 and 511,987, it is not a prime number.