Welcome to

For Writers of Mathematics

Counting in Separate Realms

Perfect Numbers Concise

Exponential Prime Power Representation

For Writers on Mathematics and Science

Perfect Numbers Concise

The Fermat-Wiles Theorem

Why is .999... = 1 ?

Geometry

Huge Factors of Enormous Integers

Counting Faces on n-dimensional Hypercubes

phi ( sigma ( n ) ) = sigma ( phi ( n ) )

Doric Columns of Primes

Number Theory

Abundancy : some resources

A little about abundancy

Values of the abundancy function

A Friendly Pair in an Ancient Manuscript

A billion solutions to

phi ( sigma ( n ) ) = sigma ( phi ( n ) )

and a conjecture

Sophie Germain primes

Huge Factors of Enormous Integers

Lots of Factors

Primitive Friendly Integers and Exclusive Multiples

Small Primitive Friendly Pairs

Primitive Friendly Pairs from a Formula

Exponential Prime Power Representation

Near-multiperfects

Counting in Separate Realms

The Fermat-Wiles Theorem

Perfect Numbers Concise

Why is .999... = 1 ?

Really Fast Primality Test

Doric Columns of Primes

Errata

Casual Visitors - Welcome !

You can view the first couple of these as you would a circus -- even if you have no intention of trying them at home .

Huge Factors of Enormous Integers

Doric Columns of Primes

Counting Faces on n-dimensional Hypercubes

The Fermat-Wiles Theorem