Q: Is 421,924 a Prime Number?
A: No, 421,924 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 421924 can be evenly divided by 1 2 4 313 337 626 674 1,252 1,348 105,481 210,962 and 421,924, with no remainder.
Since 421,924 cannot be divided by just 1 and 421,924, it is not a prime number.