Răspuns :

Mihaelapid
425 - 5 = 420
367 - 7 = 360
420 / 2 = 210 / 2 = 105 /3 = 35 / 5 = 7 / 7 = 1,  DECI 420 = 2 * 2 * 3 * 5 * 7
360 / 2 = 180 / 2 = 90 / 2 = 45 /3 = 15 / 3 = 5 / 5 = 1, DECI 360 = 2 * 2 * 2 * 3 * 3 * 5 
2 * 3 * 5 * 7 = 210
425 / 210 = 2 REST 5
367 / 210 = 3 REST 7