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află toate numerele naturale pare de forma a2b

Răspuns :

120,122,124,126,128,220,222, 224, 226,228,320,322,324,326,328,420,422,424,426,428,520,522,524,526,528,620,622,624,626,628,720,722,724,726,728,820,822,824,826,828,920,922,924,926,928.