Take a look at my Factoring experiment number 19. Factoring positive integers may be easier than generally supposed.

The shape of numbers

Randall Rathbun has introduced me to the problem of finding how many Phythagorean triangles have the same perimeter. Here are our comments about it.

The first 4000 decimals of of pi

A comprehensive discussion of units, integers which have reciprocals

A discussion of the nature of infinity

A discussion of how to calculate log base 2.

The names of 8 methods of factoring positive integers.

The derivation of the 3 cube roots of 1 and the 5 fifth roots of 1

A discussion of the proof that every positive integer is the sum of 4 squares.