5min chapter

The Numberphile Podcast cover image

An Infinite Debt - with Christopher Havens (Prisoner #349034)

The Numberphile Podcast

CHAPTER

The Prison Mathematics Project

Sadye is the founder of a non-profit organisation called Calactis, which teaches maths in prisons. He hopes to use his experience to help other prisoners through education and mentoring. In an interview with CNN he talks about what it would be like to get out of prison after 20 years.

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