Q: Is 78,409 a Prime Number?
A: No, 78,409 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 78409 can be evenly divided by 1 89 881 and 78,409, with no remainder.
Since 78,409 cannot be divided by just 1 and 78,409, it is not a prime number.