Q: Is 676,720 a Prime Number?
A: No, 676,720 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 676720 can be evenly divided by 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 769 880 1,538 3,076 3,845 6,152 7,690 8,459 12,304 15,380 16,918 30,760 33,836 42,295 61,520 67,672 84,590 135,344 169,180 338,360 and 676,720, with no remainder.
Since 676,720 cannot be divided by just 1 and 676,720, it is not a prime number.