Q: Is 2,149,521 a Prime Number?
A: No, 2,149,521 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 2149521 can be evenly divided by 1 3 11 33 53 159 583 1,229 1,749 3,687 13,519 40,557 65,137 195,411 716,507 and 2,149,521, with no remainder.
Since 2,149,521 cannot be divided by just 1 and 2,149,521, it is not a prime number.