Q: Is 521,264 a Prime Number?
A: No, 521,264 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 521264 can be evenly divided by 1 2 4 8 16 32,579 65,158 130,316 260,632 and 521,264, with no remainder.
Since 521,264 cannot be divided by just 1 and 521,264, it is not a prime number.