Q: Is 4,123,720 a Prime Number?
A: No, 4,123,720 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 4123720 can be evenly divided by 1 2 4 5 8 10 20 40 103,093 206,186 412,372 515,465 824,744 1,030,930 2,061,860 and 4,123,720, with no remainder.
Since 4,123,720 cannot be divided by just 1 and 4,123,720, it is not a prime number.