Q: Is 787,864 a Prime Number?
A: No, 787,864 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 787864 can be evenly divided by 1 2 4 7 8 11 14 22 28 44 56 77 88 154 308 616 1,279 2,558 5,116 8,953 10,232 14,069 17,906 28,138 35,812 56,276 71,624 98,483 112,552 196,966 393,932 and 787,864, with no remainder.
Since 787,864 cannot be divided by just 1 and 787,864, it is not a prime number.