LCM

Find the Lowest Common Multiple of the following sets of numbers:

1. 5 and 7  $\rightarrow \mathbf{35}$
2. 4 and 6  $\rightarrow \mathbf{12}$
3. 12 and 36  $\rightarrow \mathbf{36}$
4. 6 and 8  $\rightarrow \mathbf{24}$
5. 18 and 20  $\rightarrow \mathbf{180}$
6. 50 and 9  $\rightarrow \mathbf{450}$
7. 4 and 10  $\rightarrow \mathbf{20}$
8. 12, 20, and 80  $\rightarrow \mathbf{240}$
9. 14, 28, and 56  $\rightarrow \mathbf{56}$
10. 15, 25, and 100  $\rightarrow \mathbf{300}$