# Category Archives: Number theory

# Maths prize puzzle for 13 January 2017

# Julian Havil on surprises in maths, 20 October 2016; and Vicky Neale on number theory, 3 October 2016

Julian Havil ran a session about how maths produces surprises at CoLA on 20 October 2016. We also welcomed students and teachers from CoLA Hackney. Continue reading

# Fortnightly maths prize for 7 October 2016

What is the pattern of the differences of trios of primes bigger than 3 which are in arithmetic progression? Answer: all the trios have differences divisible by 6. Continue reading