3 and 17.
By the way, any number whose digits add up to a multiple of 3 is divisible by 3, like 513 or 720. Same goes for 9, like 801 or 7263.
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The GCF is 51.
The factors of 306 are: 1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306.
Answer: 51Definition: 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 the numbers have in common.Method: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 51 are 1, 3, 17, and 51.The factors of 102 are 1, 2, 3, 6, 17, 34, 51, and 102.The common factors are 1, 3, 17, and 51. Therefore, the greatest common factor is 51.
1, 2, 3, 6, 9, 17, 18, 34, 51, 102, 153, 306
To find the greatest common factor (GCF) of 34, 51, and 102, we first need to find the prime factors of each number. The prime factors of 34 are 2 and 17, the prime factors of 51 are 3 and 17, and the prime factors of 102 are 2, 3, and 17. The GCF is the product of the common prime factors raised to the lowest power, which in this case is 17. Therefore, the GCF of 34, 51, and 102 is 17.