Q: Is 505,520 a Prime Number?
A: No, 505,520 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 505520 can be evenly divided by 1 2 4 5 8 10 16 20 40 71 80 89 142 178 284 355 356 445 568 710 712 890 1,136 1,420 1,424 1,780 2,840 3,560 5,680 6,319 7,120 12,638 25,276 31,595 50,552 63,190 101,104 126,380 252,760 and 505,520, with no remainder.
Since 505,520 cannot be divided by just 1 and 505,520, it is not a prime number.