Q: Is 1,423,401 a Prime Number?
A: No, 1,423,401 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 1423401 can be evenly divided by 1 3 7 21 23 49 69 147 161 421 483 1,127 1,263 2,947 3,381 8,841 9,683 20,629 29,049 61,887 67,781 203,343 474,467 and 1,423,401, with no remainder.
Since 1,423,401 cannot be divided by just 1 and 1,423,401, it is not a prime number.