It is known that the greatest common divisor of two natural numbers is 4 and the least common multiple is 120 Thank you. I want the process. Please explain why

120÷4＝30＝1×30＝2×15＝3×10＝5×6
These two numbers are
4×1＝4
4×30＝120
perhaps
4×2＝8
4×15＝60
perhaps
4×3＝12
4×10＝40
perhaps
4×5＝20
4×6＝24

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