Saturday's winner is the fourth jackpot winner of the year.
Someone in Offaly is €8.2m richer after winning Saturday's jackpot.
The numbers drawn were 23, 24, 25, 42, 43, 46 and the bonus was 37.
The National Lottery is confirming the winning retail location will be announced over the coming days.
The winning ticketholder is advised to sign the back of their ticket and contact the National Lottery Prize Claims team.
National Lottery spokesperson Sarah Orr says it may take a few days to sink in:
Almost €446,000 Allocated To Midlands Community Centres And Clubhouses
Ballinahown Community Hall received the highest amount in Westmeath.
Two People Killed In Offaly Following Fatal Crash
One person has been killed in the collision.
Midlands Family Takes On Ireland’s Fittest Family Challenge
The series continues this weekend.
5K Fundraiser To Support Motor Neurone Disease Association Takes Place In Westmeath
The event is taking place tomorrow.
No Slowing Down With Age As Westmeath Bowlers Shine At 14th Annual National Bowls Competition
Woman Appears In Court Over €280k Cannabis Seizure In Midlands
20kg of cannabis was discovered in the vehicle on the M7 in Portlaoise.
Status Yellow Fog Warning Issued For Leinster, Munster And Galway
The warning will come into affect tomorrow morning.
Call For More Public Toilets Across The Midlands And Beyond
Nearly 900 public toilet facilities are located throughout the country.
