<PRE><B>Question 261674</B>
find the greatest common factor of 20a^3b, 32a^2b^2, and 44ab^3

20 * a^3 * b
32 * a^2 * b^2
44 * a   * b^3

greatest common factor means the greatest expression that will go into all three of these

20 * a^3 * b   = 2 * 2 * 5         * a * a * a * b
32 * a^2 * b^2 = 2 * 2 * 2 * 2 * 2 * a * a     * b * b
44 * a   * b^3 = 2 * 2 * 11        * a         * b * b * b

2 * 2 * a * b = 4 * a * b = 4ab is greatest common factor

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