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Q: What is the LCM of 3 18 21?

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

The LCM of 21 and 18 is 126.

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.

LCM(21, 42, 18) = 126

The LCM of 3 and 21 is 21.

The LCM of 3 and 21 is 21

The GCF is 3. The LCM is 252.

To make this easier, let's first factor 18 and 21 into their prime factors: 18=2*3^2 21=3*7 Now it's very easy to find the LCM and GCF. The LCM is 2*3^2*7=126, and the GCF is 3.

LCM of 2 6 18 and 21 is 126.

The LCM is 2520.

The Least Common Multiple (LCM) of 16, 18, and 21 is 1,008.

2 x 3 x 3 = 18 3 x 7 = 21 2 x 3 x 3 x 7 = 126, the LCM

The LCM of 18000 and 21 is 126000.

2 x 3 x 3 = 18 3 x 7 = 21 2 x 3 x 3 x 7 = 126, the LCM

The least common multiple is the smallest positive number that is the multiple of two or more numbers. 3: 3, 6, 9, 12, 15, 18, 21 21: 21 The LCM of 3 and 21 is 21.

The LCM is 630.

lcm(18, 9, 3) = 18.

The LCM of 3, 6 and 18 is 18

The LCM is 18

The LCM is 18.

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

The least common multiple (LCM) of 18, 21, and 56 is 504.

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

HCF = 3... LCM = 18 !

The LCM is: 126