Q: Is 1,421,205 a Prime Number?
A: No, 1,421,205 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 1421205 can be evenly divided by 1 3 5 15 94,747 284,241 473,735 and 1,421,205, with no remainder.
Since 1,421,205 cannot be divided by just 1 and 1,421,205, it is not a prime number.