42, 1,2, 3, 6, 7, 14, 21, 42., 2, 3, 6, 14, 21, 42, 7 (del 42), 35, 1,5, 7, 35, 5, 35, 7 (del 35), divisori in comune tra 42 e 35, 1 e 7, 1, e 7

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