Q: Is 2,138,745 a Prime Number?
A: No, 2,138,745 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 2138745 can be evenly divided by 1 3 5 7 15 21 35 105 20,369 61,107 101,845 142,583 305,535 427,749 712,915 and 2,138,745, with no remainder.
Since 2,138,745 cannot be divided by just 1 and 2,138,745, it is not a prime number.