Q: Is 2,421,857 a Prime Number?
A: No, 2,421,857 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 2421857 can be evenly divided by 1 83 29,179 and 2,421,857, with no remainder.
Since 2,421,857 cannot be divided by just 1 and 2,421,857, it is not a prime number.