SOLUTION: Finish the sequence 3. 6. 18 ___ which of these numbers is correct 84 60 72 30

Question 1210576: Finish the sequence 3. 6. 18 ___
which of these numbers is correct
84
60
72
30
Found 2 solutions by KMST, josgarithmetic:
Answer by KMST(5335) (Show Source): You can put this solution on YOUR website!
We start with and we add to the right to get

Answer by josgarithmetic(39727) (Show Source): You can put this solution on YOUR website!
Guessing, based on factors or 2's and 3's

3, 2*3, 2*3*3, next can be 2*2*3*3=36

Not enough terms for a clear pattern

"Next" should be 72.
72=2*3*2*3*2
which uses only 2's and 3's.
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