196 |2 1620 |2 1008 |2 196 = 2² * 7²
98 |2 810 |2 504 |2 1620 = 2² * 3⁴ * 5
49 |7 405 |3 252 |2 1008= 2⁴ * 3² * 7
7 |7 135 |3 126 |2 --------------------------------
1 45 |3 63 |3 c.m.m.d.c.= 2² = 4.
15 |3 21 |3 c.m.m.m.c.=2⁴ * 3⁴ * 5 * 7 =45360.
5 |5 7 |7
1 1