Answer:
2
Step-by-step explanation:
For any positive numbers a,b we always have the following identity:
(gcd(a,b) denotes the greatest common divisor between a and b, and lcm(a,b) denotes the least common multiple between a and b)
In our case, we are given that and that . Plugging that in into our identity, we get:
And so solving for :
The awnser is on #4 to answer #3 it helps you