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Earn +20 ptsQ: What is the LCM of 3 7 and 21?
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What is LCM of 3 and 7?
The LCM is: 21LCM of 3 & 7 is 21.
What is the LCM of 3 28 and 21?
3: 3 28: 7, 2, 2 21: 7, 3 LCM = 3x7x4 = 84
What pair of numbers has an LCM of 21?
7 and 21 3 and 21
What is the LCM of 21 3 and 35?
3 is a factor of 21, so ignore it. 21 factors to [3 7] 35 factors to [5 7] common factor [7] LCM = 21 * 35 / 7 = 105 ■
What is the LCM for 49 63 and 21?
lcm(49, 63, 21) = 441 49 = 7^2 63 = 3^2 x 7 21 = 3 x 7 lcm = 3^2 x 7^2 = 441
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