Q: Is 864,521 a Prime Number?
A: No, 864,521 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 864521 can be evenly divided by 1 7 123,503 and 864,521, with no remainder.
Since 864,521 cannot be divided by just 1 and 864,521, it is not a prime number.