Continue the pattern: 2, 10, 12, 21, 102, 111, 122, 201, 212, 1002, 1011, ?
~~Spoiler Alert~~
This section requires Javascript.
You are seeing this because something didn't load right. We suggest you, (a) try
refreshing the page, (b) enabling javascript if it is disabled on your browser and,
finally, (c)
loading the
non-javascript version of this page
. We're sorry about the hassle.
They are the prime numbers in base 3. Hence answer is 37 in base 3 or 1101.