Q: Is 1,087,864 a Prime Number?
A: No, 1,087,864 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 1087864 can be evenly divided by 1 2 4 8 17 19 34 38 68 76 136 152 323 421 646 842 1,292 1,684 2,584 3,368 7,157 7,999 14,314 15,998 28,628 31,996 57,256 63,992 135,983 271,966 543,932 and 1,087,864, with no remainder.
Since 1,087,864 cannot be divided by just 1 and 1,087,864, it is not a prime number.