Q: Is 521,272 a Prime Number?
A: No, 521,272 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 521272 can be evenly divided by 1 2 4 8 23 46 92 184 2,833 5,666 11,332 22,664 65,159 130,318 260,636 and 521,272, with no remainder.
Since 521,272 cannot be divided by just 1 and 521,272, it is not a prime number.