Recognize the series?

Level pending

What number comes next in the following series?

2, 10, 12, 21, 102, 111, 122, 201, 212, ???


The answer is 1002.

Geoff Pilling by Geoff Pilling , 53, USA

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1 solution

Geoff Pilling
Oct 5, 2016

These are the prime numbers in base 3.

The next one in the series is 2 9 10 = 100 2 3 29_{10} = \boxed{1002_3}

1 Helpful 0 Interesting 0 Brilliant 0 Confused

I get this one! But after failing in your base-7-problem!

William Nathanael Supriadi - 4 years, 8 months ago

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