86
2,43
154
77,2
11,7,2
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86 and 154 are not relatively prime because they are both even numbers. Relatively prime numbers have no common factors other than 1, and all even numbers have 2 as a common factor.
No, 7 is not a factor of 86.
The greatest common factor of 154 and 225 is 1.
2 x 43 = 862 x 7 x 11 = 154The GCF is 2.