In October 2010, when he began studying the Cambridge Mathematics Tripos aged 15 years and 3 months, he was the youngest Cambridge University undergraduate since William Pitt the Younger in 1773.
Prior to university, he was educated at home, and in 2001 he broke the age record for gaining a General Certificate of Secondary Education (GCSE), the English academic qualification usually taken at age 16, for which he sat the examinations aged five. In 2003 he became the youngest ever person to gain an A* grade at GCSE, also for Mathematics.
His television work has included an appearance as a "Person of the Week" on Frank Elstner's chat show on German TV in 2001, and an appearance on Terry Wogan and Gaby Roslin's Terry and Gaby Show on British TV in 2003, when he beat mathematics populariser Johnny Ball in a live mental arithmetic contest, successfully extracting the fifth roots of several large integers.
- "Student, 18, youngest ever to come top in Cambridge maths finals". Daily Telegraph. 21 June 2013.
- Wilkinson, James H. Hammarling, Sven (2003). Encyclopedia of Computer Science. Springer London. ISBN 0-470-86412-5.
- Crilly, Tony (2006). Arthur Cayley: mathematician laureate of the Victorian age. Johns Hopkins University Press. p. 160. ISBN 0-8018-8011-4.
- The previous youngest was probably James Wilkinson in 1939, aged 19 years, 9 months,; up to 1909, the youngest was Peter Guthrie Tait in 1862, aged 20 years, 8 months.
- "14-Year-Old Prodigy Offered Place at Cambridge". San Diego Union Tribune. Retrieved 2015-08-30.
- "Boy who broke GCSE record at five is off to Cambridge". London Evening Standard. Retrieved 2010-09-02.
- Jones, Sam (2010-01-07). "Cambridge University offers place to 14-year-old". London: The Guardian. Archived from the original on 9 January 2010. Retrieved 2010-01-08.
- Garner, Richard (2010-10-06). "Maths prodigy Arran Fernandez is the youngest Cambridge fresher since 1773". London: The Independent. Retrieved 2011-01-16.
- "Un ragazzino di 15 anni si è iscritto a Cambridge, è record". Quotidiano.net. 2010-09-03. Retrieved 2011-01-16.
- "GCSE success stories". BBC. 2001-08-23. Retrieved 2008-09-16.
- Smithers, Rebecca (2003-08-22). "Bright young things set record". London: The Guardian. Retrieved 2008-09-16.
- "Achtjähriges Wunderkind: Klüger ohne Schule". Der Spiegel. Retrieved 2009-02-14.
- Smithers, Rebecca (2001-08-24). "Integer sequences? Easy-peasy". London: The Guardian. Retrieved 2009-02-14.
- "Occurrences of most frequently occurring number in 1-to-n multiplication table". OEIS. Retrieved 2009-02-14.
- List of sequences in OEIS authored by Arran Fernandez
- "Frank Elstner: Menschen der Woche". Presseportal. Retrieved 2009-02-13.
- "The Terry and Gaby Show". British Film Institute. Retrieved 2009-02-13.
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