Sunrise’s Matt Shirvington has floated the idea the sole winner of Powerball’s $100 million jackpot hasn’t come forward yet as he might be in the middle of a messy divorce.

The hunt for the winner has now intensified with the search now entering its ninth week.

The winning ticket was purchased at Bondi Junction Newsagency, on Sydney’s Oxford Street, on June 12.

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The Powerball draw 1517 had the numbers 28, 10, 3, 16, 31, 14 and 21, while the Powerball number was 6.

In NSW, lotto winners have six years to claim their prize.

Sharing his theory to The Lott’s Matt Hart on Thursday, Shirvington quipped the winner was in the middle of a divorce and planning to wait a little longer before claiming the cash prize.

Hart laughed it off, saying: “We’ve heard lots of conspiracy theories. Are they on the International Space Station? On a cruise somewhere, completely oblivious? They could be! But it is probably something really benign.

“We talk to winners who come forward weeks or months after the draw and they say, ‘It was stuck on the fridge the whole time. It was in a wallet, it was begging to be checked.’ So check your ticket, check it twice.”

Hart said The Lott has details of the time the winning ticket was sold and the type of ticket that was bought but is unable to release this information to the public.

Hart explained The Lott is now running a campaign to help “jog” someone’s memory.

Hart said: “We are sprinting through the streets Sydney, not to win a race, but race to find a winner. Nine weeks since someone took home of Australia’s third-biggest lottery winner, but where are they?

“So, we are here to jog some memories and get people to check their tickets.”

Hart encouraged Lotto players to register their entries, which would allow The Lott to immediately know they were the winners.

Hart said: “Register your entries.

“If they had, we would have already given them the money, they would be off on a cruise somewhere or buying a house.

“It is really important to check your ticket. It could be worth $100 million.”