The least common factor is the smallest factor that two or more numbers have in common. Thus, the least common factor of two numbers is 1.
The least common factor of 48 and 116 is 1.
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The least common multiple of 48 and 116 is 1,392.
There is not a least common factor of a single number, such as 48 because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The least common factor would be the smallest factor that all the numbers being compared have in common. If there were two or more numbers, the least common factor would be 1.
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 28 and 48 is 4. Therefore, the least common multiple is 28 x 48 ÷ 4 = 336.
8 and 48
The least common factor for any set of numbers is always 1.