Proof Without Words: Squares and Primes

Författare/skapare:Roy Wright

Område(n):Kvadrat

A proof without words: When you take 1 away from a square number, you will never get a prime number. Well, almost never. (The green dot in the lower right can be dragged.)

Nya resurser

Pitfalls of Disk/Washer Method
Locus Related to Descartes' Folium
Volume by Disk/Washer around y
z`]]
Triangle with 3 Right Angles

Upptäck resurser

E_Clerides_Tessellation
Snell's Law for isotropic solids
Quiz: Average Rate of Change of a Function (3)
בעיית המספרים
Stew_ Basics_Construction of Lines

Undersök matematisk områden

Multiplikation
Pythagoras eller Pythagoras sats
Enhetscirkeln
Rotation
Fördelningar