Q: Is 1,240,005 a Prime Number?
A: No, 1,240,005 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 1240005 can be evenly divided by 1 3 5 13 15 39 65 195 6,359 19,077 31,795 82,667 95,385 248,001 413,335 and 1,240,005, with no remainder.
Since 1,240,005 cannot be divided by just 1 and 1,240,005, it is not a prime number.