Question 48445
Six Different Numbers
One Digit: C(6,1) = 6!/5!1! = 6
. 1 .. 2 ... 3 .... 4 ..... 5 ...... 6
Two Digits: C(6,2) = 6!/4!2! = 15
12 34
13 35
14 36
15 45
16 46
23 65
24
25
26
Three Digits: C(6,3) = 6!/3!3! = 20