Q: Is 1,423,458 a Prime Number?
A: No, 1,423,458 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 1423458 can be evenly divided by 1 2 3 6 9 18 31 62 93 186 279 558 2,551 5,102 7,653 15,306 22,959 45,918 79,081 158,162 237,243 474,486 711,729 and 1,423,458, with no remainder.
Since 1,423,458 cannot be divided by just 1 and 1,423,458, it is not a prime number.