Q: Is 421,676 a Prime Number?
A: No, 421,676 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 421676 can be evenly divided by 1 2 4 271 389 542 778 1,084 1,556 105,419 210,838 and 421,676, with no remainder.
Since 421,676 cannot be divided by just 1 and 421,676, it is not a prime number.