■142857(その44)

 7倍自己再現数の末尾は3,5,8のいすれかである.

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  7(03)^2=63

  7(13)^2=1183

  7(23)^2=3703

  7(33)^2=7623

  7(43)^2=12943・・・7倍保型数

  7(53)^2=19663

  7(63)^2=27783

  7(73)^2=37303

  7(83)^2=48223

  7(93)^2=60543

  7(043)^2=12943

  7(143)^2=143143・・・7倍保型数

  7(243)^2=413343

  7(343)^2=823543

  7(443)^2=1373743

  7(543)^2=2063943

  7(643)^2=2894143

  7(743)^2=3864343

  7(843)^2=4974543

  7(943)^2=6224743

  7(0143)^2=143143

  7(1143)^2=9145143

  7(2143)^2=32147143

  7(3143)^2=69149143

  7(4143)^2=120151143

  7(5143)^2=185153143

  7(6143)^2=264155143

  7(7143)^2=357157143・・・7倍保型数

  7(8143)^2=464159143

  7(9143)^2=585161143

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