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There is not a greatest common factor of a single number, such as 121, because there cannot be a greatest common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor.
The factors of 121 are 1, 11, and 121.
The only prime factor of 121 is 11.
Examples:
The greatest common factor of 11 and 63 is 1.
The greatest common factor of 11 and 154 is 11.
The greatest common factor of 11, 99, and 253 is 11.
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What is the greatest common factor of 121 and 231?
The greatest common factor (GCF) of 121 and 231 is 11.
What is the greatest common factor of 36 and 121?
The GCF of 36 and 121 is 1.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The 9 factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36.The 3 factors of 121 are 1, 11, and 121.The only common factor is 1. Therefore, the greatest common factor is 1.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 36 are 2, 2, 3, and 3.The prime factors of 121 are 11 and 11.There are no prime factors in common, so the numbers are relatively prime, meaning the greatest common factor is 1.Summary of Results:The common factors are a single 1.The greatest common factor is 1.
What is the greatest common factor of 99 and 121?
The GCF of 99 and 121 is 11
What is the greatest common factor of 121 and 280?
The GCF of 121 and 280 is 1.
Greatest common factor for 49 and 121?
1
