Respuesta :

naǫ
[tex]45=3 \cdot 3 \cdot 5 \\ 75=3 \cdot 5 \cdot 5[/tex]

The GCF is [tex]3\cdot 5 =15[/tex].
luana
[tex]GCF-\ the\ largest\ common\ factor\ of\ two\ numbers:\\\\ 45:5\\ 9:3\\ 3:3\\\\ 75:5\\ 15:3\\ 5:5\\\\ GCF=5*3=15\\Answer\ is\ 15.[/tex]