Q: Is 487,521 a Prime Number?
A: No, 487,521 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 487521 can be evenly divided by 1 3 9 19 57 171 2,851 8,553 25,659 54,169 162,507 and 487,521, with no remainder.
Since 487,521 cannot be divided by just 1 and 487,521, it is not a prime number.