Q: Is 78,378 a Prime Number?
A: No, 78,378 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 78378 can be evenly divided by 1 2 3 6 13,063 26,126 39,189 and 78,378, with no remainder.
Since 78,378 cannot be divided by just 1 and 78,378, it is not a prime number.