Least Common Multiple (LCM) for 21 35 is 105.
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The LCM is: 105
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 ■
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The Least Common Multiple (LCM) of (21,35) is 105
The least common multiple (LCM) of 7, 21, and 35 is the smallest multiple that all three numbers share. To find the LCM, you first need to factorize each number into its prime factors: 7 = 7, 21 = 3 x 7, and 35 = 5 x 7. Then, identify the highest power of each prime factor that appears in any of the factorizations. The LCM is the product of these prime factors raised to their highest powers: LCM(7, 21, 35) = 3 x 5 x 7 = 105.