- Indeterminate Equations
- Euclid's Algorithm
- Euclid's Extended Algorithm
- Computing gcd and ax+by=d at the same time
- Decimal to Fraction Conversion Using Euclid
- Continued Fractions
- Continued Fractions Using An Algorithm
- Modular Arithmetic
- Linear Congruence Equations
- Chinese Remainder Theorem and the Chinese Problem
- Chinese Problem Formula 1
- Chinese Remainder Theorem due to Gauss
- Number Base Systems
- Fermat's Factorisation Method
- Fermat's Method Odd and Even a's and b's
- Fermat's Method: Sieve
- Divisibility Tests Method 1 (All Numbers)
- Divisibility: Method 2
- Divisibility Trial Division

Ken Ward's Mathematics Pages

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Ken's book is packed with examples and explanations that enable you to discover more than 150 techniques to speed up your arithmetic and increase your understanding of numbers. Paperback and Kindle: