Q: Is 787,648 a Prime Number?
A: No, 787,648 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 787648 can be evenly divided by 1 2 4 8 16 31 32 62 64 124 248 397 496 794 992 1,588 1,984 3,176 6,352 12,307 12,704 24,614 25,408 49,228 98,456 196,912 393,824 and 787,648, with no remainder.
Since 787,648 cannot be divided by just 1 and 787,648, it is not a prime number.