The group started an office pool at the 75th Medical Group in Layton in March, and spent a total of $450 on tickets to win $111,111 each.
Several members of the group claimed the prize in Boise on Friday from a ticket purchased in Malad, Idaho, for the Aug. 25 draw.
Lottery spokesman David Workman says it was the seventh million-dollar-plus payout for Utahns, and most of those winning tickets were sold in Malad.
Group leaders Ju Nare Cope, of Ogden, and Michelle Allgaier, of South Weber, say they knew they had won big after matching the first five numbers, but not the Powerball, on Aug. 25.
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