Q: Is 1,423,540 a Prime Number?
A: No, 1,423,540 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 1423540 can be evenly divided by 1 2 4 5 10 20 109 218 436 545 653 1,090 1,306 2,180 2,612 3,265 6,530 13,060 71,177 142,354 284,708 355,885 711,770 and 1,423,540, with no remainder.
Since 1,423,540 cannot be divided by just 1 and 1,423,540, it is not a prime number.