Q: Is 2,742,405 a Prime Number?
A: No, 2,742,405 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 2742405 can be evenly divided by 1 3 5 15 23 69 115 345 7,949 23,847 39,745 119,235 182,827 548,481 914,135 and 2,742,405, with no remainder.
Since 2,742,405 cannot be divided by just 1 and 2,742,405, it is not a prime number.