[tex]\begin{array}{r|l}150&2\\75&3\\25&5\\5&5\\1\end{array}\\\\150=2\cdot3\cdot5^2\\\\\\\begin{array}{r|l}315&3\\105&3\\35&5\\7&7\\1\end{array}\\\\315=3^2\cdot5\cdot7\\\\\text{NWW}(150,315)=2\cdot3^2\cdot5^2\cdot7=3150[/tex]
150,315 | : 5
30, 63 |: 3
10, 21
NWW(150,315)=5·3·10·21=3150
