The greatest common factor (GCF) of 3 and 49 is 1. This is because the only positive integer that divides both 3 and 49 without leaving a remainder is 1. In other words, 1 is the largest number that both 3 and 49 can be evenly divided by.
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The greatest common factor of 147 and 36 is 3.
The greatest common factor of 42, 49 and 84 is 7.
Greatest common factor of 6 24 and 33 is 3.
The GCF is 3.
The greatest common factor of 33, 27 & 39 is 3.