### Brain Teasers

# 1, 2, 6, 12, 36, 72, 216...

What are the next three numbers in this sequence?

1, 2, 6, 12, 36, 72, 216, 432, 1296, 2592, 7776, 15552, ?, ?, ?

1, 2, 6, 12, 36, 72, 216, 432, 1296, 2592, 7776, 15552, ?, ?, ?

### Answer

Multiply alternately by 2 and 3, we get this sequence.The next three numbers are 46656(=15552*3), 93312(=46656*2), and 279936(=93312*3).

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