Solution - Least common multiple (LCM)
1,680
Step by Step Solution
Least Common Multiple is :
1680Calculate Least Common Multiple for :
21, 16 and 20
Factorize of the above numbers :
21 = 3 • 7
16 = 24
20 = 22 • 5
Build a prime factors table
| Prime Factor | Number 21 | Number 16 | Number 20 | L.C.M (max) |
|---|---|---|---|---|
| 2 | 0 | 4 | 2 | 4 |
| 3 | 1 | 0 | 0 | 1 |
| 5 | 0 | 0 | 1 | 1 |
| 7 | 1 | 0 | 0 | 1 |
LCM = 24 • 3 • 5 • 7
Least Common Multiple is :
1680How did we do?
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