13th root 13th root Extracting the 13th root of a number is a famous category for the mental calculation world records. The challenge consists of being given a large number (possibly over 100 digits) and asked to return the number that, when taken to the 13th power, equals the given number. For example, the 13th root of 8,192 is 2 and the 13th root of 96,889,010,407 is 7. Extracting the 13th root has certain properties. One is that the 13th root of a number is much smaller: a 13th root will have approximately 1/13th the number of digits. Thus, the 13th root
Joe Root Root signed a three-year professional contract with Yorkshire. Root was selected for the Under 19 Cricket World Cup, in New Zealand, making an unbeaten 70 in a victory against Hong Kong as England progressed to the quarter finals before being eliminated by the West Indies. Later that winter, he was sent to the Darren Lehmann Academy in Adelaide, South Australia, to fine tune his game. In the fourth Test against India, Root became the 655th player to represent England at Test cricket, receiving his cap from former England all-rounder Paul Collingwood. Coming in as the number 6 batsman rather than