Find Least Common Multiple of 2, 9, 3, 2, 2 and 2 using prime factorisation method.
Answer
LCM( 2, 9, 3, 2, 2, 2 ) = 18
Explanation
Step 1: Write down factorisation of each number:
2 = 2
9 = 3 · 3
3 = 3
2 = 2
2 = 2
2 = 2
Step 2 : Match primes vertically:
| 2 | = | 2 | ||||
| 9 | = | 3 | · | 3 | ||
| 3 | = | 3 |
Step 3 : Bring down numbers in each column and multiply to get LCM:
| 2 | = | 2 | ||||||
| 9 | = | 3 | · | 3 | ||||
| 3 | = | 3 | ||||||
| LCM | = | 2 | · | 3 | · | 3 | = | 18 |
This page was created using
LCM Calculator