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Q: What is LCM for 3 and 21?

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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.

The LCM of 3 and 21 is 21.

The LCM is: 21LCM of 3 & 7 is 21.

LCM of 3, 8 and 21 is 84...

The LCM is: 105

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

21 is the LCM of 3 and 7

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

21

3=3*1 7=7*1 21=3*7 LCM=(3*7)=(21*1)=21

The LCM is 21.

It is: 21

The LCM of 6 and 21 is 42. Their GCF is 3.

the LCM is 63

The LCM is: 21

LCM is 21

The Least Common Multiple (LCM) for 21 3 9 is 63.

The Least Common Multiple (LCM) for 3 15 21 is 105.

3 3*7=21 3*30=90 * * * * * That is the Greatest Common Factor, GCF, not the LCM. LCM(21, 90) = 630

LCM is 21, which is the multiple of the highest power of prime factors in the given numbers (3 x 7).The LCM is 21.

18 = 2 x 3 x 3; 21 = 3 x 7. Common factor is 3 so LCM = 18 x 21/3 = 126

The LCM of 3 and 21 is 21.

The LCM is: 42

The LCM is: 168

LCM 21, and GCF =1