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1638

2 x 819

2 x 3 x 273

2 x 3 x 3 x 91

2 x 3 x 3 x 7 x 13

So: 1,638 = 2 x 3 x 3 x 7 x 13 = 2 x 32 x 7 x 13

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14y ago

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