Q: Is 2,421,873 a Prime Number?
A: No, 2,421,873 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 2421873 can be evenly divided by 1 3 9 19 27 57 171 513 4,721 14,163 42,489 89,699 127,467 269,097 807,291 and 2,421,873, with no remainder.
Since 2,421,873 cannot be divided by just 1 and 2,421,873, it is not a prime number.