Q: Is 402,078 a Prime Number?
A: No, 402,078 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 402078 can be evenly divided by 1 2 3 6 19 38 57 114 3,527 7,054 10,581 21,162 67,013 134,026 201,039 and 402,078, with no remainder.
Since 402,078 cannot be divided by just 1 and 402,078, it is not a prime number.