Q: Is 1,423,550 a Prime Number?
A: No, 1,423,550 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 1423550 can be evenly divided by 1 2 5 10 25 50 71 142 355 401 710 802 1,775 2,005 3,550 4,010 10,025 20,050 28,471 56,942 142,355 284,710 711,775 and 1,423,550, with no remainder.
Since 1,423,550 cannot be divided by just 1 and 1,423,550, it is not a prime number.