Solution - Least common multiple (LCM)
16,380
Step by Step Solution
Least Common Multiple is :
16380Calculate Least Common Multiple for :
78, 90 and 140
Factorize of the above numbers :
78 = 2 • 3 • 13
90 = 2 • 32 • 5
140 = 22 • 5 • 7
Build a prime factors table
| Prime Factor | Number 78 | Number 90 | Number 140 | L.C.M (max) |
|---|---|---|---|---|
| 2 | 1 | 1 | 2 | 2 |
| 3 | 1 | 2 | 0 | 2 |
| 5 | 0 | 1 | 1 | 1 |
| 7 | 0 | 0 | 1 | 1 |
| 13 | 1 | 0 | 0 | 1 |
LCM = 22 • 32 • 5 • 7 • 13
Least Common Multiple is :
16380How did we do?
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