Q: Is 345,078 a Prime Number?
A: No, 345,078 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 345078 can be evenly divided by 1 2 3 6 9 18 19 38 57 114 171 342 1,009 2,018 3,027 6,054 9,081 18,162 19,171 38,342 57,513 115,026 172,539 and 345,078, with no remainder.
Since 345,078 cannot be divided by just 1 and 345,078, it is not a prime number.