Q: Is 528,423 a Prime Number?
A: No, 528,423 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 528423 can be evenly divided by 1 3 7 21 25,163 75,489 176,141 and 528,423, with no remainder.
Since 528,423 cannot be divided by just 1 and 528,423, it is not a prime number.