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Sunday Math Party 23 Fibonacci 89 109

Sunday Math Party 23 Fibonacci 89 109

第23回 日曜数学会
「フィボナッチ数列と89と109」

フィボナッチ数をmod 9で並べた
112358437180887641562810
にたまたま89をかけたら
9999900909099000099090090
となってびっくりした話です。

同様に
18265146788081734853211
に109をかけると
1990900999900909098999999
になりました。

この89と109は特別なようだということがわかりました。

IWABUCHI Yu(u)ki butchi

January 22, 2022
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  1. フィボナッチ数列 F n = 0, 1, 1, 2, 3, 5,

    8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946, 17711, 28657, …
  2. フィボナッチ数列とFLKM系列 F n = 0, 1, 1, 2, 3, 5,

    8, 13, 21, 34, 55, 89, 144, 233, 377, 610, 987, 1597, 2584, 4181, 6765, 10946, 17711, 28657, … Fchain: 0, 1, 1, 2, 3, 5, 8, 4, 3, 7, 1, 8, 0, 8, 8, 7, 6, 4, 1, 5, 6, 2, 8, 1 (mod 9) Lchain: 0, 2, 2, 4, 6, 1, 7, 8, 6, 5, 2, 7, 0, 7, 7, 5, 3, 8, 2, 1, 3, 4, 7, 2 (mod 9) Kchain: 0, 3, 3, 6, 0, 6, 6, 3, 0, 3, 3, 6, 0, 6, 6, 3, 0, 3, 3, 6, 0, 6, 6, 3 (mod 9) Mchain: 0, 4, 4, 8, 3, 2, 5, 7, 3, 1, 4, 5, 0, 5, 5, 1, 6, 7, 4, 2, 6, 8, 5, 4 (mod 9) フィボナッチ数列を9で割った余りは24項で1周する 千々松 健 “FLKM系列” http://8w1hflkm.jp/
  3. 89が絡む乗算 (FLKM) F: 011235843718088764156281 × 89 = 0999990090909900009909009 L: 022461786527077538213472

    × 89 = 1999099000909900900999008 K: 033606630336066303360663 × 89 = 2990990099909900999099007 M: 044832573145055167426854 × 89 = 3990099009909909900990006 M: 055167426854044832573145 × 89 = 4909900990009990099009905 K: 066303360663033606630336 × 89 = 5900999099009990990099904 L: 077538213472022461786527 × 89 = 6900900999009999099000903 F: 088764156281011235843718 × 89 = 7900009909009999990090902
  4. 109が絡む乗算 (FLKM) F: 018265146788081734853211 × 109 = 1990900999900909098999999 L: 027431283577072568716422

    × 109 = 2990009909900909990089998 K: 036606330366063303660633 × 109 = 3990090009900900099008997 M: 045862476155054137523844 × 109 = 4999009900900900990098996 M: 054137523844045862476155 × 109 = 5900990099000999009900895 K: 063303660633036606330366 × 109 = 6900099009000990090009894 L: 072568716422027431283577 × 109 = 7909990090000990009909893 F: 081734853211018265146788 × 109 = 8909099000000990900999892