Posted by marko on .
what is the least number of dancers that are needed if a choreographer wants to arrange them in groups of 4,5, or 6 with none left?
im not understanding the question. can you help?

math word problem 
Ms. Sue,
You're looking for the greatest common multiple of 4, 5, and 6
Which of these multiples of 6 is also a multiple of 4 and 5?
6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72 
math word problem 
marko,
60

math word problem 
Ms. Sue,
Right.

math word problem 
marko,
so the least number of dancers that are needed for groups of 4,5,6 is
60