Q: Is 421,074 a Prime Number?
A: No, 421,074 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 421074 can be evenly divided by 1 2 3 6 9 18 149 157 298 314 447 471 894 942 1,341 1,413 2,682 2,826 23,393 46,786 70,179 140,358 210,537 and 421,074, with no remainder.
Since 421,074 cannot be divided by just 1 and 421,074, it is not a prime number.