Solution - Least common multiple (LCM)
7,560
Step by Step Solution
Least Common Multiple is :
7560Calculate Least Common Multiple for :
21, 40 and 54
Factorize of the above numbers :
21 = 3 • 7
40 = 23 • 5
54 = 2 • 33
Build a prime factors table
| Prime Factor | Number 21 | Number 40 | Number 54 | L.C.M (max) |
|---|---|---|---|---|
| 2 | 0 | 3 | 1 | 3 |
| 3 | 1 | 0 | 3 | 3 |
| 5 | 0 | 1 | 0 | 1 |
| 7 | 1 | 0 | 0 | 1 |
LCM = 23 • 33 • 5 • 7
Least Common Multiple is :
7560How did we do?
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