Crossword Puzzle Factor of every integer

Clue: Factor of every integer

___ Dream Extreme Cheesecake (offering at the Cheesecake Factory) (OREO with 4 letters)
Day spa offering (e.g. FACIAL with 6 letters)
Opinions offered (INPUT with 5 letters)
Office number abbr. (e.g. EXT with 3 letters)
Officeholders, for short (POLS with 4 letters)
One of its official languages is Eng. (THEUN with 5 letters)
Earlier offense (PRIOR with 5 letters)
Treasury offerings until 1980 (EBONDS with 6 letters)
Office stamps (DATERS with 6 letters)
Petty officers, at sea (YEOMEN with 6 letters)