Question 168659
{{{N = 20 * 30 * 50 * 70 * 110 * 130}}}
{{{N = 2 *10 * 3* 10 * 5* 10 * 7* 10 * 11 * 10 * 13 * 10}}}
The only prime numbers in the result are 2 ,3, 5, 7, 11 and 13
The smallest one is 2; but 2 is a factor of 10
So the smallest one not a factor of 10 is 3