Q: Is 557,430 a Prime Number?
A: No, 557,430 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 557430 can be evenly divided by 1 2 3 5 6 10 15 17 30 34 51 85 102 170 255 510 1,093 2,186 3,279 5,465 6,558 10,930 16,395 18,581 32,790 37,162 55,743 92,905 111,486 185,810 278,715 and 557,430, with no remainder.
Since 557,430 cannot be divided by just 1 and 557,430, it is not a prime number.