What is the GCD for 1715 and 1225?

Question

What is the LCM for 1715 and 1225?

Answer 1

1715 = 49*35 = 7*7*35
1225 = 35*35 = 7*5*35
The Greatest Common Divisor is 7*35 = 245

The Least Common Multiple is
245*7*5 = 8575