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Mathematics
Jimmy Hahn
6 January, 11:30
What is the gcf of 21 and 40
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Kinsley
6 January, 12:29
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1 is the gcf of 21 and 40
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Petty
6 January, 15:16
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Factor
21=1*3*7
40=1*2*2*2*5
gcf=1
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