Solution - Least common multiple (LCM)
420
Step by Step Solution
Least Common Multiple is :
420Calculate Least Common Multiple for :
28, 42 and 105
Factorize of the above numbers :
28 = 22 • 7
42 = 2 • 3 • 7
105 = 3 • 5 • 7
Build a prime factors table
| Prime Factor | Number 28 | Number 42 | Number 105 | L.C.M (max) |
|---|---|---|---|---|
| 2 | 2 | 1 | 0 | 2 |
| 3 | 0 | 1 | 1 | 1 |
| 5 | 0 | 0 | 1 | 1 |
| 7 | 1 | 1 | 1 | 1 |
LCM = 22 • 3 • 5 • 7
Least Common Multiple is :
420How did we do?
Please leave us feedback.