Q: Is 1,055,388 a Prime Number?
A: No, 1,055,388 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 1055388 can be evenly divided by 1 2 3 4 6 12 37 74 111 148 222 444 2,377 4,754 7,131 9,508 14,262 28,524 87,949 175,898 263,847 351,796 527,694 and 1,055,388, with no remainder.
Since 1,055,388 cannot be divided by just 1 and 1,055,388, it is not a prime number.