David Cameron said the £9.9 billion boost the UK economy received from the London 2012 Games shows "you should think British".
The Prime Minister said it is "a reminder to the world that, if you want the best, if you want professionalism, if you want jobs done on time and on budget then you should think British".
Mr Cameron also highlighted the "social legacy" of the Olympics and Paralympics, saying "thousands of people have been inspired" following the success of the Games Makers volunteers.
More top news
A couple have got married for the second time after the bride forgot their first big day following a car crash.
Sir Bruce Forsyth, Sir Cliff Richard and the Prime Minister have been among those paying tribute to Cilla Black following news of her death.
TV favourite Cilla Black, who has died aged 72, gave viewers a "lorra, lorra laughs" during her long career.