Q: Is 521,052 a Prime Number?
A: No, 521,052 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 521052 can be evenly divided by 1 2 3 4 6 7 12 14 21 28 42 84 6,203 12,406 18,609 24,812 37,218 43,421 74,436 86,842 130,263 173,684 260,526 and 521,052, with no remainder.
Since 521,052 cannot be divided by just 1 and 521,052, it is not a prime number.