Q: Is 558,440 a Prime Number?
A: No, 558,440 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 558440 can be evenly divided by 1 2 4 5 8 10 20 23 40 46 92 115 184 230 460 607 920 1,214 2,428 3,035 4,856 6,070 12,140 13,961 24,280 27,922 55,844 69,805 111,688 139,610 279,220 and 558,440, with no remainder.
Since 558,440 cannot be divided by just 1 and 558,440, it is not a prime number.