Q: Is 505,128 a Prime Number?
A: No, 505,128 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 505128 can be evenly divided by 1 2 3 4 6 8 12 13 24 26 39 52 78 104 156 312 1,619 3,238 4,857 6,476 9,714 12,952 19,428 21,047 38,856 42,094 63,141 84,188 126,282 168,376 252,564 and 505,128, with no remainder.
Since 505,128 cannot be divided by just 1 and 505,128, it is not a prime number.