The three Presidents are Rutherford B. Hayes, Benjamin Harrison, and
George W. Bush in 2000.
Below you will find a few brief excerpts where you may verify this information..
?Three presidents have been elected by means of an electoral college
victory while losing the national popular vote (Rutherford B. Hayes in
1877, Benjamin Harrison in 1888, and George W. Bush in 2000). ?
Source: Encyclopedia Britannica
?The winner of the nationwide popular vote nearly always receives a
majority of the electoral votes and becomes president. But the
Electoral College has elected three presidents who lost the popular
vote. These presidents were Rutherford B. Hayes in 1876, Benjamin
Harrison in 1888, and George W. Bush in 2000. A fourth president, John
Quincy Adams, lost the popular vote in the election of 1824. But Adams
was elected president by the House of Representatives after no
candidate had received a majority of the electoral votes.?
World Book Encyclopedia
Three presidents?Rutherford B. Hayes in 1876, Benjamin Harrison in
1888, and George W. Bush in 2000?were elected with fewer popular votes
than their opponents
Presidents elected Electoral College fewer popular votes opponents
"Three Presidents" ?Electoral College? Hayes Bush Rutherford
I hope this is helpful.