Tìm ước của 180.
Giải thích
Ta có:
180 = 22⋅32⋅5
Suy ra:
Ư(180) = {−180, −90, −60, −45, −36, −30, −20, −18, −15, −12, −10, −9, −6, −5, −4, −3, −2, −1, 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180}
Ta có:
180 = 22⋅32⋅5
Suy ra:
Ư(180) = {−180, −90, −60, −45, −36, −30, −20, −18, −15, −12, −10, −9, −6, −5, −4, −3, −2, −1, 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180}