If the DUP supports the Conservatives, they would together have more than the 326 seats required for a majority to pass a legislative programme.
But the DUP has not yet confirmed whether it will offer its support to the Tories (a party source said talk of an agreement was “premature”). And without its backing the Tories do not have enough seats for a majority.
Labour, meanwhile, says it wants to form a minority government (see below).
So nothing is certain yet and there are likely to be negotiations between the party leaders.