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To find the greatest common factor of two numbers, they first need to be split into their prime factors. For 85 and 51 this is done as follows:
51 = 17x3
85 = 17x5
The next step is to identify any common factors. In this case, both numbers have 17 as a prime factor. This is the only common factor, and thus the greatest common factor of 85 and 51 is 17.
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What is the greatest common factor of 85 and 255?
The greatest common factor of 85 and 255 is 85.
Greatest common factor of 85 and 204?
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What is the greatest common factor of 34 and 85?
The greatest common factor of 34 and 85 is 17.The factors of 34 are: 1, 2, 17, 34The factors of 85 are: 1, 5, 17, 85The common factors are: 1, 17The Greatest Common Factor: GCF = 17
What is the highest common factor of 85 and 115?
The Greatest Common Factor (GCF) is: 5
What is the greatest common factor of 85 and 155?
The GCF of 85 and 155 is 5. A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that both numbers have in common. One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 85 are 1, 5, 17, and 85. The factors of 155 are 1, 5, 31, and 155. The common factors are 1 and 5. Therefore, the greatest common factor is 5.
