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What’s the least common multiple for each group of numbers? a. 6 and 15 b. 4 and 11 c. 6, 9, and 12 d. 8, 10, and 20
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4 votes
What’s the least common multiple for each group of numbers?

a. 6 and 15
b. 4 and 11
c. 6, 9, and 12
d. 8, 10, and 20

User Big
by
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1 Answer

5 votes
you have to use the prime factorization
A, 6= 2*3 15=3*5
You can see that three is common in both so you do not need both
LCM=2*3*5=30

B, 4=2*2 11 is a prime so
LCM=4*11=44

Hope this will help you solve C and D too.
User FurryMachine
by
6.3k points
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