How many combinations are possible for 13 objects taken 6 at a time? 1,716 205,920 1,235,520 4,826,809

The answer would be 1,235,520. To find this you would have to multiply the first six terms following 13.

13! = 13 x 12 x 11 x 10 x 9 x 8

If it wasn't specifically asking for only 6 terms, every number from 13 to 1 would be multiplied.