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Applied Mathematics

Fundamental theorem of Arithmetic

Question

Determine the following numbers are co-prime.
$$81$$ and $$16$$.

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Solution

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Factors of $$81=1, 3, 9, 27, 81$$
Factors of $$16=1, 2, 4, 8, 16$$
Common factors $$=1$$

Therefore, the given two numbers are co-prime.

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Q1

Determine the following numbers are co-prime.
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