Q: Is 2,042,540 a Prime Number?
A: No, 2,042,540 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 2042540 can be evenly divided by 1 2 4 5 10 20 73 146 292 365 730 1,399 1,460 2,798 5,596 6,995 13,990 27,980 102,127 204,254 408,508 510,635 1,021,270 and 2,042,540, with no remainder.
Since 2,042,540 cannot be divided by just 1 and 2,042,540, it is not a prime number.