The greatest common factor of two one digit numbers is 1, and the least common multiple is 63. These two numbers are______ And______ .
63 = 7 × 9 = 21 × 3 = 63 × 1 because these two numbers are all one digit numbers, so 21 and 3, 63 and 1 do not meet the requirements of the question, so the two numbers are 7 and 9
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