Q: Is 1,042,640 a Prime Number?
A: No, 1,042,640 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 1042640 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 13,033 26,066 52,132 65,165 104,264 130,330 208,528 260,660 521,320 and 1,042,640, with no remainder.
Since 1,042,640 cannot be divided by just 1 and 1,042,640, it is not a prime number.