Q: Is 1,423,815 a Prime Number?
A: No, 1,423,815 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 1423815 can be evenly divided by 1 3 5 15 23 69 115 345 4,127 12,381 20,635 61,905 94,921 284,763 474,605 and 1,423,815, with no remainder.
Since 1,423,815 cannot be divided by just 1 and 1,423,815, it is not a prime number.