Q: Is 505,800 a Prime Number?
A: No, 505,800 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 505800 can be evenly divided by 1 2 3 4 5 6 8 9 10 12 15 18 20 24 25 30 36 40 45 50 60 72 75 90 100 120 150 180 200 225 281 300 360 450 562 600 843 900 1,124 1,405 1,686 1,800 2,248 2,529 2,810 3,372 4,215 5,058 5,620 6,744 7,025 8,430 10,116 11,240 12,645 14,050 16,860 20,232 21,075 25,290 28,100 33,720 42,150 50,580 56,200 63,225 84,300 101,160 126,450 168,600 252,900 and 505,800, with no remainder.
Since 505,800 cannot be divided by just 1 and 505,800, it is not a prime number.