Q: Is 421,774 a Prime Number?
A: No, 421,774 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 421774 can be evenly divided by 1 2 23 46 53 106 173 346 1,219 2,438 3,979 7,958 9,169 18,338 210,887 and 421,774, with no remainder.
Since 421,774 cannot be divided by just 1 and 421,774, it is not a prime number.