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138 = 2 X 3 X 23 and 102 = 2 X 3 X 17. 17 and 23 are both prime numbers; therefore, the greatest common divisor of the two specified numbers is 2 X 3 = 6.

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Q: Greatest common divisor of 138 and 102?
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What is the greatest common factor of 102 and 138?

Greatest common factor of 102 and 138 is 2.


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What is the greatest common factor of 115 and 138?

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