Q: Is 1,338,138 a Prime Number?
A: No, 1,338,138 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 1338138 can be evenly divided by 1 2 3 6 9 17 18 34 51 102 153 306 4,373 8,746 13,119 26,238 39,357 74,341 78,714 148,682 223,023 446,046 669,069 and 1,338,138, with no remainder.
Since 1,338,138 cannot be divided by just 1 and 1,338,138, it is not a prime number.