Q: What is the LCM of 21 3 9?

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The GCF is 3. The LCM is 63.

21 = 7 x 3 , 9 = 3 x 3 ; for the Least Common Multiple (LCM), 21 already is a multiple of 7. 21 & 9 have a common factor of 3, so LCM = 21 x 3 = 63

It's 126. -- the 6th multiple of 21 -- the 9th multiple of 14 -- the 14th multiple of 9

The LCM is 441.

The Least Common Multiple (LCM) for 3 21 is 21.

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LCM OF 9,3 AND 21 IS 63. CHECK FOR YOURSELF IF YOU ARE NOT SURE.

7 x 9 = 63 3 x 21 = 63 Therefore, the LCM of 9 and 21 is 63.

the LCM is 63

The LCM is: 63

3 x 3 = 9 3 x 7 = 21 3 x 3 x 7 = 63, the LCM

The LCM is 252.

3 x 3 = 9 3 x 7 = 21 3 x 3 x 7 = 63, the LCM

3 x 3 = 9 3 x 7 = 21 3 x 3 x 7 = 63, the LCM

The GCF is 3. The LCM is 63.

21 = 7 x 3 , 9 = 3 x 3 ; for the Least Common Multiple (LCM), 21 already is a multiple of 7. 21 & 9 have a common factor of 3, so LCM = 21 x 3 = 63

The LCM of 9 and 21 is 63, which is the multiple of the highest power of prime factors from both numbers, is 63. (3² x 7 = 3 x 3 x 7 = 63).

the lcm of 3 and 7 is 21 and the lcm of 7 and 21 is 21, so the lcm of 3, 7 and 21 is the lcm of 21 and 21 which is 21.