The least common factor (LCF) of two or more numbers is the smallest common factor of each number. For example the LCF of 21 and 63 is 3 because 21= 3*7 and 63 = 3*3*7.
The gretest Commonn factor (GCF) is the largest fctor common to each number. In the above example, you can see that 7 is the GCF.
2006-12-13 00:09:15
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answer #1
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answered by ironduke8159 7
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If you have 2 numbers then the greatest common factor is the largest number that is devisable of both.
For example:
If you had 2 numbers (12 and 3)
12 can be divided by 1, 2, 3, 4, 6 and 12
30 can be divided by 1, 2, 3, 5, 6, 10, 15 and 30
Notice that 1,2,3 and 6 appear in both lists? So, the common factors of 12 and 30 are: 1, 2, 3 and 6
The greatest common factor is the highest of those numbers (6) and the lowest is the opposite (1).
2006-12-13 00:09:50
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answer #2
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answered by Anonymous
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