DNA blow our minds with numbers | Grand Final | Britain’s Got Talent 2017 1,867,229

Just when we thought DNA couldn’t spook us any more they manage to stun us all over again using numbers and one of David’s books to read the Judges’ minds!See more from Britain's Got Talent at http://itv.com/talentSUBSCRIBE: http://bit.ly/BGTsub Facebook: http://www.facebook.com/BGT Twitter: http://twitter.com/BGT