Question 316495
First off since it ends in 5, it's divisible by 5.
{{{945/5=189}}}
Since the sum of the digits of 189 (18) is divisible by 3, it's divisible by 3.
{{{189/3=63}}}
The factors of 63 are 7 and 9.
{{{945=3*5*7*9}}}