Q: Is 878,720 a Prime Number?
A: No, 878,720 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 878720 can be evenly divided by 1 2 4 5 8 10 16 20 32 40 64 80 128 160 320 640 1,373 2,746 5,492 6,865 10,984 13,730 21,968 27,460 43,936 54,920 87,872 109,840 175,744 219,680 439,360 and 878,720, with no remainder.
Since 878,720 cannot be divided by just 1 and 878,720, it is not a prime number.