Q: Is 505,720 a Prime Number?
A: No, 505,720 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 505720 can be evenly divided by 1 2 4 5 8 10 20 40 47 94 188 235 269 376 470 538 940 1,076 1,345 1,880 2,152 2,690 5,380 10,760 12,643 25,286 50,572 63,215 101,144 126,430 252,860 and 505,720, with no remainder.
Since 505,720 cannot be divided by just 1 and 505,720, it is not a prime number.