Hellenica World

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39

39 = 3 * 13

239 - 1 = 7 * 79 * 8191 * 121369

1039 - 1 = 3 * 3 * 3 * 37 * 53 * 79 * 265371653 * 900900900900990990990991

38 - 39 - 40

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