Multiples of 7, like 7, 14, 21 and so on.
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The greatest common factor of 133 and 203 is 7
14 = 7 x 2 & 49 = 7 x 7 '7' is common to both numbers, so seven is the HCF ( Highest common factor).
A number that is a factor of two or more numbers is simply a common factor
Well, isn't that a happy little question! To find the highest common factor of 77 and 259, we can start by listing the factors of both numbers. The factors of 77 are 1, 7, 11, and 77, while the factors of 259 are 1, 7, 37, and 259. The highest common factor is the largest number that appears in both lists, which in this case is 1. Remember, in the world of numbers, even the smallest factors can bring joy and harmony!
YESS 7/21 has the factor of '7' in both numbers . So cancel down by '7' Hence 7/21 = 1 /3