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Finite Sums of Positive Integers Pillow

$20 $25
  • Finite Sums of Positive Integers Pillow by Tom's Store 14
  • Finite Sums of Positive Integers by Tom's Store 14
Finite Sums of Positive Integers Pillow by Tom's Store 14 Finite Sums of Positive Integers by Tom's Store 14
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Pillow FAQ

A Classic visual proof showing that the sum of the first n positive integers is n times n+1 divided by 2.

Textured Poly “Twill” pillow cover with concealed zipper and synthetic insert included. A soft, comfortable accent for the home. Individually cut and sewn by hand in America.

Standard

FedEx 2-Day (4-6 Business Days)

Estimates include printing and processing time.More Shipping Info

We want you to love your order! If for any reason you don't, let us know and we’ll make things right.Learn More

Profile image About MathVisualProofs
I animate visual proofs on YouTube. Check out my official merch!
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