SOLUTION: 8=56 7=42 6=30 5=20 3=?

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Question 867645: 8=56
7=42
6=30
5=20
3=?
Found 2 solutions by checkley79, acubed1234:
Answer by checkley79(3341) About Me  (Show Source):
You can put this solution on YOUR website!
8=56 8*7=56
7=42 7*6=42
6=30 6*5=30
5=20 5*4=20
3=? 3*2=6 ans.

Answer by acubed1234(5) About Me  (Show Source):
You can put this solution on YOUR website!

I wrote out a general solution here . . . https://www.scribd.com/doc/260182194/Elementary-Sequences