Find Least Common Multiple of 35 and 85 using ladder method..

LCM( 35, 85 ) = 595

Step 1 : Place the numbers inside division bar:

Step 2 : Find a prime number which divides both numbers.

In this example we can divide by 5. If any number is not divisible by 5 write it down unchanged.

Step 4 : LCM is a product of numbers into L shape.

LCM = 5 · 7 · 17 = 595

This solution can be visualized using a Venn diagram.

The LCM is equal to the product of all the numbers on the diagram.