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Old 2020-09-11, 16:42   #5
RMLabrador
 
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"Roman V. Makarchuk"
Aug 2020
Ukraine

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Thank You for advice! You are right! And I'm right too when talk about symmetry of resudials, ok 1247 - 601 and 638? try 1247-601+2 and 1247-638+2. For prime numbers, such symmetry exist; Sorry for take Your time, I'm just not search for ordinary exeptions, I'm find out such of them that break the symmetry.
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