In the past, winners have used several tactics to increase their odds. While some have opted to go solo, others have teamed up with fellow players to form groups known as syndicates.
Alex Gwynne, 28, and Dan Phillips and Kyle Bowen, both 25, began playing the lottery when a group of students in the year above them at Coleg y Cymoedd won £5,000 on the National Lottery.
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