Q: Is 3,113,721 a Prime Number?
A: No, 3,113,721 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 3113721 can be evenly divided by 1 3 9 13 27 39 81 117 351 1,053 2,957 8,871 26,613 38,441 79,839 115,323 239,517 345,969 1,037,907 and 3,113,721, with no remainder.
Since 3,113,721 cannot be divided by just 1 and 3,113,721, it is not a prime number.