Q: Is 509,820 a Prime Number?
A: No, 509,820 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 509820 can be evenly divided by 1 2 3 4 5 6 10 12 15 20 29 30 58 60 87 116 145 174 290 293 348 435 580 586 870 879 1,172 1,465 1,740 1,758 2,930 3,516 4,395 5,860 8,497 8,790 16,994 17,580 25,491 33,988 42,485 50,982 84,970 101,964 127,455 169,940 254,910 and 509,820, with no remainder.
Since 509,820 cannot be divided by just 1 and 509,820, it is not a prime number.