Q: Is 1,078,640 a Prime Number?
A: No, 1,078,640 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 1078640 can be evenly divided by 1 2 4 5 8 10 16 20 40 80 97 139 194 278 388 485 556 695 776 970 1,112 1,390 1,552 1,940 2,224 2,780 3,880 5,560 7,760 11,120 13,483 26,966 53,932 67,415 107,864 134,830 215,728 269,660 539,320 and 1,078,640, with no remainder.
Since 1,078,640 cannot be divided by just 1 and 1,078,640, it is not a prime number.