Q: Is 1,423,521 a Prime Number?
A: No, 1,423,521 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 1423521 can be evenly divided by 1 3 9 11 27 33 99 297 4,793 14,379 43,137 52,723 129,411 158,169 474,507 and 1,423,521, with no remainder.
Since 1,423,521 cannot be divided by just 1 and 1,423,521, it is not a prime number.