Q: Is 1,820,443 a Prime Number?
A: No, 1,820,443 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 1820443 can be evenly divided by 1 1,021 1,783 and 1,820,443, with no remainder.
Since 1,820,443 cannot be divided by just 1 and 1,820,443, it is not a prime number.