5x2+10/2-5=?, 5, 10, 15, 20, (4x5)+2/11=?, 3, 7, 2, 8, 1, 9, what is the factor of 12, 1, 7, 6, 2, 8, 3, what is the factor of 24, 2, 4, 7, 6.

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