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Dear Dirichlet, Issue 20
Cricket, coursework and karaoke are among the problems solved in this issue's Dear Dirichlet agony aunt columnFerm-ant’s principle
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Phone assistants, duplicating pastries, and being a 10 anywhere else are among the topics of discussion in this issue's Dear Dirichlet advice columnTop Ten: Geometry instruments
The definitive chart of the best toolsThe digital sum of the products of twin primes is 8?
What connects the products of twin primes with something you learnt in primary school and the number 8?Prize crossnumber, Issue 03
Be in for a chance to win a £100 goody bag if you can solve our fiendish crossnumber