Q: Is 557,380 a Prime Number?
A: No, 557,380 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 557380 can be evenly divided by 1 2 4 5 10 20 29 31 58 62 116 124 145 155 290 310 580 620 899 961 1,798 1,922 3,596 3,844 4,495 4,805 8,990 9,610 17,980 19,220 27,869 55,738 111,476 139,345 278,690 and 557,380, with no remainder.
Since 557,380 cannot be divided by just 1 and 557,380, it is not a prime number.