Răspuns:
Explicație pas cu pas:
N : 3 = a rest 2 => N = 3•a+2 |+1
N : 4 = b rest 3 => N = 4•b+3 |+1
N : 5 = c rest 4 => N = 5•c+4 |+1
=> N+1 = 3•a+3 => N+1 = 3•(a+1)
=> N+1 = 4•b+4 => N+1 = 4•(b+1)
=> N+1 = 5•c+5 => N+1 = 5•(c+1)
N+1 = c.m.m.m.c (3;4;5)
N+1 = 3•4•5
N+1 = 60
N = 60-1
N = 59 numărul căutat
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Verificarea soluției:
59 : 3 = 19 rest 2
59 : 4 = 14 rest 3
59 : 5 = 11 rest 4