Q: Is 2,721,740 a Prime Number?
A: No, 2,721,740 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 2721740 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 19,441 38,882 77,764 97,205 136,087 194,410 272,174 388,820 544,348 680,435 1,360,870 and 2,721,740, with no remainder.
Since 2,721,740 cannot be divided by just 1 and 2,721,740, it is not a prime number.