Q: Is 2,421,855 a Prime Number?
A: No, 2,421,855 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 2421855 can be evenly divided by 1 3 5 9 15 45 53,819 161,457 269,095 484,371 807,285 and 2,421,855, with no remainder.
Since 2,421,855 cannot be divided by just 1 and 2,421,855, it is not a prime number.