15
7 different notes.
1*422*21 3*146*7
The answer is 7C5 = 21.
7
3 or 7 - depending on whether you count a transposed array as different. 1*64 2*32 4*16 8*8
4 (or eight if you count transposed arrays as being different).
15
7 different notes.
1*422*21 3*146*7
The answer is 7C5 = 21.
identify two composite numbers that each have 8 as a factor
7
it is 1 7 tens 1 fives
7
7
7