Pi, or π, is a semi-official Numberblock who is made of about 3.14159... blocks.
In his drawing, he is circular with four quadrant-circular blocks. He has dark green eyebrows, that look like Four's, except the right eyebrow is a (π-2)x1 rectangle instead of a 2x1 one. His blocks are pale yellow and his limbs and lips are dark green with a bucktooth.
Has its own page.
- He is the only character to be made out of non-full blocks.
- He never appeared in episodes, only in a Pi Day tweet.
- Pi Day is held on March 14 (3/14).
- Pi was referenced in "More to Explore".
- The actual reference is Three, One and Four (3.14) standing next to a pie.
- Pi was also seen for a frame during the "count to 1000000" segment, along with a lot of other mathematical constants (the golden ratio, √2, euler's constant, the powers of 2, etc.)
- He and Forty-Two are the only characters who don't appear in any episode but already having a official supposed figured-out appearance.
- Pi to 50 decimal places is: