Video · 63 and -7/4 are special – Numberphile TwitterShare on Facebook2K 1 289 675 views Numberphile - March 24, 2014 Science Numberphile More Videos Red & Black Knights (extraordinary result) – Numberphile Science · 2 weeks ago Entirely Ridiculously Big Numbers – Numberphile Science · 3 weeks ago Mathematician Attempts Art – Numberphile Science · April 14, 2026 4211 – The Party Pooper Prime – Numberphile Science · April 7, 2026 The Original Biggest Numbers – Numberphile Science · March 31, 2026 The Weather Equation – Numberphile Science · March 18, 2026 Calculating Pi with Skittles and Census Data – Numberphile Science · March 14, 2026 Feeling Grumpy about Pi Day – Numberphile Science · March 13, 2026