Q: Is 1,022,640 a Prime Number?
A: No, 1,022,640 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 1022640 can be evenly divided by 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 4,261 8,522 12,783 17,044 21,305 25,566 34,088 42,610 51,132 63,915 68,176 85,220 102,264 127,830 170,440 204,528 255,660 340,880 511,320 and 1,022,640, with no remainder.
Since 1,022,640 cannot be divided by just 1 and 1,022,640, it is not a prime number.