Q: Is 421,611 a Prime Number?
A: No, 421,611 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 421611 can be evenly divided by 1 3 313 449 939 1,347 140,537 and 421,611, with no remainder.
Since 421,611 cannot be divided by just 1 and 421,611, it is not a prime number.