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The Least Common Multiple (LCM) for 5 20 is 20.
The least common multiple of 15 , 30 , 45 = 90
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The least common multiple of 5 and 2 is 10.
The least common multiple of two numbers is the product of the two numbers divided by their greatest common factor. The greatest common factor of 5 and 23 is 1. (See related question "What is the greatest common factor of 5 and 23?" for this calculation.) So, the least common multiple is 5 x 23 ÷ 1 = 115.
The least common multiple of 12 , 5 = 60
The least common multiple of 5 , 4 = 20
The least common multiple of 104 , 5 = 520
The Least Common Multiple of 4, 5 is: 20
The least common multiple of 457 , 5 = 2,285
The least common multiple of 1613 , 5 = 8,065