Q: Is 278,430 a Prime Number?
A: No, 278,430 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 278430 can be evenly divided by 1 2 3 5 6 10 15 30 9,281 18,562 27,843 46,405 55,686 92,810 139,215 and 278,430, with no remainder.
Since 278,430 cannot be divided by just 1 and 278,430, it is not a prime number.