Thursday, February 24, 2011

Using the digits from 1 to 9 only once

879 + 426 = 1305 and 879 + 624 = 1503
859 + 347 = 1206 and 859 + 743 = 1602
789 + 264 = 1053 and 789 + 246 = 1035
756 + 342 = 1098 and 765 + 324 = 1089
657 + 432 = 1089 and 675 + 423 = 1098
589 + 473 = 1062 and 589 + 437 = 1026


Find other combinations.

With products,

58401 = 63 * 927 32890 = 46 * 715 26910 = 78 * 345
19084 = 52 * 367 17820 = 36 * 495 and 17820 = 45 * 396
16038 = 27 * 594 and 16038 = 54 * 297 15678 = 39 * 402

65821 = 7 * 9403 65128 = 7 * 9304 34902 = 6 * 5817
36508 = 4 * 9127 28651 = 7 * 4093 28156 = 4 * 7039
27504 = 3 * 9168 24507 = 3 * 8169 21658 = 7 * 3094
20754 = 3 * 6918 20457 = 3 * 6819 17082 = 3 * 5694
15628 = 4 * 3907

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