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Since 61 is a Prime number and is not a factor of 72, the greatest common positive integer factor of 61 and 72 is 1.

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βˆ™ 2012-03-13 02:13:20
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βˆ™ 2015-11-11 01:36:39

The GCF is 1.

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Q: What is the gcf of 61 and 72?
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