LCM( 3, 5 ) = 15
Step 1 : Place the numbers inside division bar:
3 | 5 |
Step 2 : Find a prime number which divides both numbers.
Since there are no primes that divides at least two of given numbers, we conclude that the LCM is a product of starting numbers.
LCM = 3 · 5 = 15
This solution can be visualized using a Venn diagram.
The LCM is equal to the product of all the numbers on the diagram.