Q: Is 3,721,491 a Prime Number?
A: No, 3,721,491 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 3721491 can be evenly divided by 1 3 9 27 337 409 1,011 1,227 3,033 3,681 9,099 11,043 137,833 413,499 1,240,497 and 3,721,491, with no remainder.
Since 3,721,491 cannot be divided by just 1 and 3,721,491, it is not a prime number.