Q: Is 1,521,572 a Prime Number?
A: No, 1,521,572 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 1521572 can be evenly divided by 1 2 4 13 26 29 52 58 116 377 754 1,009 1,508 2,018 4,036 13,117 26,234 29,261 52,468 58,522 117,044 380,393 760,786 and 1,521,572, with no remainder.
Since 1,521,572 cannot be divided by just 1 and 1,521,572, it is not a prime number.