# what two numbers have a gcf of 3 and a lcm of 12 ?

I am doing my homework it says to write two numbers with a gcf of 3 and a lcm of 12.
asked Nov 15, 2011

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## 2 Answers

Sometimes you need not look too far and think too hard.

A pair of such numbers will be 3 and 12.

Surprised?

Factors of 3: 1, 3
Factors of 12: 1, 2, 3, 4, 6, 12
Thus, the gcf is 3.

Multiples of 3: 3, 6, 9, 12, 15, 18
Multiples of 12: 12, 24
Thus, the lcm is 12.
answered Nov 15, 2011 by anonymous
6 and 3 idiot
answered Nov 3, 2012 by anonymous

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