Question

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find the greatest common factor of $20w^2$ and $16m^3$.

Explanation:

Step1: Factor coefficients

Prime factors of $20$: $20=2^2\times5$
Prime factors of $16$: $16=2^4$

Step2: Identify common coefficient factor

The highest power of $2$ common to both is $2^2=4$

Step3: Check variable commonality

The terms have $w^2$ and $m^3$; no shared variables.

Answer:

4