Q: Is 209,860 a Prime Number?
A: No, 209,860 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 209860 can be evenly divided by 1 2 4 5 7 10 14 20 28 35 70 140 1,499 2,998 5,996 7,495 10,493 14,990 20,986 29,980 41,972 52,465 104,930 and 209,860, with no remainder.
Since 209,860 cannot be divided by just 1 and 209,860, it is not a prime number.