Q: Is 345,219 a Prime Number?
A: No, 345,219 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 345219 can be evenly divided by 1 3 7 17 21 51 119 357 967 2,901 6,769 16,439 20,307 49,317 115,073 and 345,219, with no remainder.
Since 345,219 cannot be divided by just 1 and 345,219, it is not a prime number.