Q: Is 557,740 a Prime Number?
A: No, 557,740 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 557740 can be evenly divided by 1 2 4 5 10 20 79 158 316 353 395 706 790 1,412 1,580 1,765 3,530 7,060 27,887 55,774 111,548 139,435 278,870 and 557,740, with no remainder.
Since 557,740 cannot be divided by just 1 and 557,740, it is not a prime number.