Q: Is 1,240,515 a Prime Number?
A: No, 1,240,515 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 1240515 can be evenly divided by 1 3 5 9 15 27 45 81 135 243 405 1,021 1,215 3,063 5,105 9,189 15,315 27,567 45,945 82,701 137,835 248,103 413,505 and 1,240,515, with no remainder.
Since 1,240,515 cannot be divided by just 1 and 1,240,515, it is not a prime number.