Răspuns:
Explicație pas cu
fie n acele numere
n:23=5 rest 0
n=23*5=115
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n:23=5 rest 1
n=23*5+1=115+1=116
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n:23=5 rest 2
n=23*5+2=115+2=117
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n:23=5 rest 3
n=23*5+3=115+3
n=118
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n:23=5 rest 4
n=23*5+4=115+4=119
n={115,116,117,118,119}