Q: Is 1,024,640 a Prime Number?
A: No, 1,024,640 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 1024640 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 1,601 3,202 6,404 8,005 12,808 16,010 25,616 32,020 51,232 64,040 102,464 128,080 204,928 256,160 512,320 and 1,024,640, with no remainder.
Since 1,024,640 cannot be divided by just 1 and 1,024,640, it is not a prime number.