Q: Is 787,870 a Prime Number?
A: No, 787,870 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 787870 can be evenly divided by 1 2 5 10 78,787 157,574 393,935 and 787,870, with no remainder.
Since 787,870 cannot be divided by just 1 and 787,870, it is not a prime number.