Q: Is 1,138,521 a Prime Number?
A: No, 1,138,521 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 1138521 can be evenly divided by 1 3 131 393 2,897 8,691 379,507 and 1,138,521, with no remainder.
Since 1,138,521 cannot be divided by just 1 and 1,138,521, it is not a prime number.