Q: Is 506,555 a Prime Number?
A: No, 506,555 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 506555 can be evenly divided by 1 5 7 35 41 205 287 353 1,435 1,765 2,471 12,355 14,473 72,365 101,311 and 506,555, with no remainder.
Since 506,555 cannot be divided by just 1 and 506,555, it is not a prime number.