A single number does not have a common factor. Common factors are factors that two or more numbers have in common. The greatest common factor of a pair of numbers over 50 could be any number, depending on the pair of numbers.
The greatest common factor of 51 and 100 is 1.
The greatest common factor of 51, 52, 53, 54, 55, and 56 is 1.
The greatest common factor of 52 and 100 is 2.
The greatest common factor of 57 and 102 is 3.
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Their greatest common factor is 2. Divide both parts by 2 to give 62 over 95.
Oh, what a happy little math question we have here! To find the Greatest Common Factor of 9, 15, and 21, we look for the largest number that divides evenly into all three. In this case, the Greatest Common Factor is 3, because it is the largest number that can evenly divide 9, 15, and 21. Just like painting, math can be a beautiful and calming experience when we take our time to explore and understand it.
There is really no such thing as a "greatest common multiple". Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.
There is really no such thing as a "greatest common multiple". Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.
There is really no such thing as a "greatest common multiple". Once you find the least common multiple of a set of numbers, you can keep adding the LCM to itself over and over again. Each new number you get will be a common multiple of your set of numbers, but each new number will always be larger than the previous. This means that you can keep adding while the number approaches infinity and you will still never find a greatest multiple.