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Anonymous
160
Leone Wisozk ∙
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2x40
Wiki User
80 = 2 x 2 x 2 x 2 x 5
-82
-42
80 has a prime factorization of 2 X 2 X 2 X 2 X 5. You can group any two, three or four of them and multiply them by the rest.
-20 and 80 -20*80=-1600 -20+80=60