Q: Is 1,423,155 a Prime Number?
A: No, 1,423,155 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 1423155 can be evenly divided by 1 3 5 15 17 51 85 255 5,581 16,743 27,905 83,715 94,877 284,631 474,385 and 1,423,155, with no remainder.
Since 1,423,155 cannot be divided by just 1 and 1,423,155, it is not a prime number.