Q: Is 2,123,838 a Prime Number?
A: No, 2,123,838 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 2123838 can be evenly divided by 1 2 3 6 9 18 117,991 235,982 353,973 707,946 1,061,919 and 2,123,838, with no remainder.
Since 2,123,838 cannot be divided by just 1 and 2,123,838, it is not a prime number.