Q: Is 2,142,738 a Prime Number?
A: No, 2,142,738 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 2142738 can be evenly divided by 1 2 3 6 9 13 18 26 39 78 117 234 9,157 18,314 27,471 54,942 82,413 119,041 164,826 238,082 357,123 714,246 1,071,369 and 2,142,738, with no remainder.
Since 2,142,738 cannot be divided by just 1 and 2,142,738, it is not a prime number.