Q: Is 278,018 a Prime Number?
A: No, 278,018 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 278018 can be evenly divided by 1 2 13 17 26 34 37 74 221 289 442 481 578 629 962 1,258 3,757 7,514 8,177 10,693 16,354 21,386 139,009 and 278,018, with no remainder.
Since 278,018 cannot be divided by just 1 and 278,018, it is not a prime number.