Q: Is 1,242,590 a Prime Number?
A: No, 1,242,590 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 1242590 can be evenly divided by 1 2 5 10 137 274 685 907 1,370 1,814 4,535 9,070 124,259 248,518 621,295 and 1,242,590, with no remainder.
Since 1,242,590 cannot be divided by just 1 and 1,242,590, it is not a prime number.