Q: Is 1,240,420 a Prime Number?
A: No, 1,240,420 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 1240420 can be evenly divided by 1 2 4 5 10 20 109 218 436 545 569 1,090 1,138 2,180 2,276 2,845 5,690 11,380 62,021 124,042 248,084 310,105 620,210 and 1,240,420, with no remainder.
Since 1,240,420 cannot be divided by just 1 and 1,240,420, it is not a prime number.