Eighty-One

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"We have to get the Eighty-One to stop!" — Ones
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“	Big squares, prepare for mega sneeze!	”
	— Eighty-One, 100 Ways to Leave The Planet

Eighty-One, or 81, is a Numberblock made of 81 blocks.

He is voiced by Rasmus Hardiker.

Appearance[]

Eighty-One has 80 pink blocks with magenta borders, and 1 red block that often acts as his nose whenever he is in his 9x9 arrangement. He has pale blue square eyes, curved eyebrows that look similar to Twelve's mouth, and limbs.

Traits[]

Eighty-One is seen sneezing a lot as he is 9x9.

Episode Appearances[]

The Big One (compound)
Square on the Moon (figured-out, debut)
100 Ways to Leave the Planet
The Magical Nines
Nine's Time to Shine (latest appearance)

Total number of appearances: 5 (4 figured-out, 1 compound)

He has appeared in 2% of all Numberblocks episodes, including the crossover episodes.

Arrangements[]

"Atchoo!" There's more shapes Eighty-One can make than just being a square.

2D (3/???)

Figured-Out (3)

Trivia[]

He speaks in an elder accent.
Eighty-One is the first if not only Numberblock in the 80s to be figured out, as Series 8 may (or may not) introduce new characters in the 80s.
Eighty-One is the second male Numberblock to end in a 1, with the first being Thirty-One.
Because he is 9x9, Eighty-One has lots of similarities to Nine.
- They are both squares.
- His face is just Nine's face with his eyebrows replaced with Twelve’s eyebrows.
- He is commonly seen sneezing, like Nine.
- Both him and Nine are results of $(8\times10^x)+1$ .
- They are both males.
- They are both multiples of 3 and 9 itself.
- They are both odd numbers.
- They are both jolly.
He is the third Numberblock to be a 4th power, the second is Sixteen and the first is One.
He is the second Numberblock to be voiced by Rasmus Hardiker, with the first being Eighteen.
- Coincidentally, Eighteen's digits are Eighty-One's but swapped, and both are multiples of 9.
He is one of the figured-out Numberblocks with the fewest appearances in the series, the others are Forty-Nine, Thirty-Five, Twenty-Nine and Thirty-One.
Eighty-One is the 3rd tesseract to be physically figured out, the first and second being One and Sixteen respectively. ^[1]
He is also the 4th square and 4th multiple of 3 to be male (before Series 7).^[2]
Eighty-One, like Sixteen, is almost a super rectangle with 5 factors.
His red unit block acts as his 'nose'.
Eighty-One is the first figured-out Numberblock without a self-introduction.
Eighty-One is currently the biggest figured-out Numberblock that is not a multiple of 10.^[3]
Eighty-One is the currently the biggest odd Numberblock to be figured out.
He is also the biggest odd multiple of three to be figured out.
Of all Numberblocks with 'noses', his is the most obvious.
He was mentioned in We're Going on a Square Hunt as 9x9, and then appeared later in The Big One as "80 and 1”.
He quite sounds similar to Alphablock M.
Eighty-One along with Thirty-Six, Forty-Nine and Sixty-Four were probably figured-out offscreen some time before Steps Versus Squares or after the events of More to Explore and Your Turn.
- He is the only one of the four squares that weren't seen as a drawing in More To Explore.
  - This likely didn't happen as Nine showing off a drawing of him could likely make the song go out of rhyme.
  - While a drawing of him wasn't seen, the larger rebuild of the Square Temple in More to Explore, had two extra layers of the exterior added, including a Nine layer. This means this is probably where his drawing came from, even though is was never shown on screen.
He is the first Numberblock to have not said their own name in their figured-out debut. The second is Seventy-Two.
- He is the only Numberblock to not have their name said by anyone in their figured-out debut.
- If you count Eleven's cameo in The Wrong Number as her debut, then Eighty-One is the second Numberblock of this sort.
Until Series 7, he is not physically shown standing up.

Navigation[]

Numberblocks characters

Numberblocks	Discovered	Zero, One, Two, Three, Four, Five, Six, Seven, Eight, Nine, Ten, Eleven, Twelve, Thirteen, Fourteen, Fifteen, Sixteen, Seventeen, Eighteen, Nineteen, Twenty, Twenty-One, Twenty-Two, Twenty-Three, Twenty-Four, Twenty-Five, Twenty-Six, Twenty-Seven, Twenty-Eight, Twenty-Nine, Thirty, Thirty-One, Thirty-Two, Thirty-Five, Thirty-Six, Forty, Forty-Two, Forty-Five, Forty-Eight, Forty-Nine, Fifty, Fifty-Four, Fifty-Five, Fifty-Six, Sixty, Sixty-Three, Sixty-Four, Seventy, Seventy-Two, Eighty, Eighty-One, Ninety, One Hundred
	Undiscovered / Non-physical	Ninety-Nine, Two Hundred, Three Hundred, Nine Hundred, One Thousand, Seven Thousand, Ninety Thousand, Two Million, Seven Million, Eight Million, Nine Million, Orders of Magnitude, Compound Numberblocks
	Alter-Egos	The Terrible Twos, Octoblock, The Three Threes, Octonaughty, Step Squad, The Four Fours
	Non-integers	Pi
Monsters		Flapjack Snaffler, Blockzilla, Big Tum, Twangle
Times Tables		One Times Table, Two Times Table, Three Times Table, Four Times Table, Five Times Table, Six Times Table, Seven Times Table, Eight Times Table, Nine Times Table, Ten Times Table
Other		Fluffies, Squarey, Oblongy, Numberblobs, Aliens, Rainbows, Flatlanders, Sheep, Birds, What-Iffer, Octo-Computer, Rex and Rekenrek, Alphablocks, Colourblocks

↑ if not Zero
↑ However this was confirmed to be false as 42, 54, and 63 has debuted.
↑ If not counting compounds

[1] t Zero

[2] However this was confirmed to be false as 42, 54, and 63 has debuted.

[3] If not counting compounds

[1]

[2]

[3]