Q: Is 520,345 a Prime Number?
A: No, 520,345 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 520345 can be evenly divided by 1 5 7 35 14,867 74,335 104,069 and 520,345, with no remainder.
Since 520,345 cannot be divided by just 1 and 520,345, it is not a prime number.