Răspuns :
A=10a+1b+10b+1c+10c+1a
A=11a+11b+11c,iar:
b=1a+1b+1c
A:B=(11a+11b+11c):(1a+1b+1c)=11
A=11a+11b+11c,iar:
b=1a+1b+1c
A:B=(11a+11b+11c):(1a+1b+1c)=11
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A=ab+bc+ca si B=a+b+c
⇵
A=10a+b+10b+c+10c+a = 11*(a+b+c)