Q: Is 523,720 a Prime Number?
A: No, 523,720 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 523720 can be evenly divided by 1 2 4 5 8 10 20 40 13,093 26,186 52,372 65,465 104,744 130,930 261,860 and 523,720, with no remainder.
Since 523,720 cannot be divided by just 1 and 523,720, it is not a prime number.