The Lotto Max jackpot has maxed out again, six weeks after a group of co-workers from Markham, Ont., won a record-breaking $60 million prize. Another estimated $60 million is up for grabs this week, in addition to 24 Maxmillions prizes of $1 million. The combined $84 million in prizes makes Friday night's draw one of the biggest in Canadian history. Lotto Max jackpots begin at $10 million and grow each week until a winner claims the top prize. Once the jackpot hits the maximum $60 million, an additional $1 million prize is added on each week. Tickets are available until 10:30 p.m. ET on Friday evening, and draws are held each Friday night. The winning ticket for the largest-ever Canadian jackpot, a $64-million Lotto 649 prize, was sold in Ontario last month. The ticket-holder has yet to come forward.