Number Systems
which of the following is a pair of co-primes: $$(32,62)$$
DoubtBuddy
Subjective Type
Which of the following pairs of numbers are co-prime ? $$ 17 $$ and $$ 85 $$
Solution
$$ 17 $$ and $$ 85 $$
The factors of $$ 17 $$ are $$ 1 , 17 $$
The factors of $$ 85 $$ are $$ 1 , 5 , 17 , 85 $$
The common factors of $$ 17 $$ and $$ 85 $$ are $$ 1 $$ and $$ 17 $$
$$ \therefore \, $$ They are not co-prime because they have more than $$ 1$$ common factor.
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