Q: Is 168,421 a Prime Number?
A: No, 168,421 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 168421 can be evenly divided by 1 11 61 251 671 2,761 15,311 and 168,421, with no remainder.
Since 168,421 cannot be divided by just 1 and 168,421, it is not a prime number.