A five-year-old has been hailed as one of Britain's brainiest kids - after reciting pi to more than 100 places.<br /><br />Haigen Oakes was playing on his father, David Oakes', phone calculator when he discovered the mathematical constant, and quickly learned it off by heart.<br /><br />And, to mum Jessica Saunders' amazement, he recently reeled off the number to a staggering 100 places.<br /><br />Pi is an irrational number, meaning its decimal places never end - nor enter a permanently repeating pattern.<br /><br />Jessica, 33, praised Haigen as a little boffin and says he is excelling in all subjects at school.<br /><br />The mum-of-two, from Norwich, said: "Haigen's favourite toy is a calculator.<br /><br />"I have to buy him new ones all the time because they run out of battery - I think that says a lot."<br /><br />The brainy tot developed a natural talent for figures in his younger years, a lot of which comes down to his extraordinarily good memory.<br /><br />Filmed on 14th July 2022
