Q: Is 2,139,536 a Prime Number?
A: No, 2,139,536 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 2139536 can be evenly divided by 1 2 4 7 8 14 16 28 49 56 98 112 196 392 784 2,729 5,458 10,916 19,103 21,832 38,206 43,664 76,412 133,721 152,824 267,442 305,648 534,884 1,069,768 and 2,139,536, with no remainder.
Since 2,139,536 cannot be divided by just 1 and 2,139,536, it is not a prime number.