Q: Is 1,338,172 a Prime Number?
A: No, 1,338,172 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 1338172 can be evenly divided by 1 2 4 11 17 22 34 44 68 187 374 748 1,789 3,578 7,156 19,679 30,413 39,358 60,826 78,716 121,652 334,543 669,086 and 1,338,172, with no remainder.
Since 1,338,172 cannot be divided by just 1 and 1,338,172, it is not a prime number.