\(36\cdot11\cdot25\cdot9\\=6\cdot6\cdot11\cdot5\cdot5\cdot9\\=(6\cdot5)\cdot(6\cdot5)\cdot(11\cdot9)\\=30\cdot30\cdot99\\=900\cdot99\\=89100\)
36.11.25.9
= 396.25.9
=9900.9= 89100
31.11.25.9
= 6.6.11.5.5.9
={6.5} . {6.5} . {9.11}
=30.30.99
=900.99
=89100