Q: Is 1,355,888 a Prime Number?
A: No, 1,355,888 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 1355888 can be evenly divided by 1 2 4 8 16 83 166 332 664 1,021 1,328 2,042 4,084 8,168 16,336 84,743 169,486 338,972 677,944 and 1,355,888, with no remainder.
Since 1,355,888 cannot be divided by just 1 and 1,355,888, it is not a prime number.