Q: Is 978,320 a Prime Number?
A: No, 978,320 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 978320 can be evenly divided by 1 2 4 5 7 8 10 14 16 20 28 35 40 56 70 80 112 140 280 560 1,747 3,494 6,988 8,735 12,229 13,976 17,470 24,458 27,952 34,940 48,916 61,145 69,880 97,832 122,290 139,760 195,664 244,580 489,160 and 978,320, with no remainder.
Since 978,320 cannot be divided by just 1 and 978,320, it is not a prime number.