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How to find the greatest common divisor and the least common multiple of 45 and 105?
45=5x3x3

105=5x3x7

The greatest common divisor of 45 and 105: 5x3= 15 (public x public)

Least common multiple of 45 and 105: 5x3x7 = 3 15 (common x is unique)

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