Q: Is 557,000 a Prime Number?
A: No, 557,000 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 557000 can be evenly divided by 1 2 4 5 8 10 20 25 40 50 100 125 200 250 500 557 1,000 1,114 2,228 2,785 4,456 5,570 11,140 13,925 22,280 27,850 55,700 69,625 111,400 139,250 278,500 and 557,000, with no remainder.
Since 557,000 cannot be divided by just 1 and 557,000, it is not a prime number.