We explain what the lowest usual multiple is and also give instances of how the concept might be teach to your major school child.

You are watching: Least common multiple of 3 and 8


The lowest common multiple of two numbers is the smallest entirety number i beg your pardon is a many of both.Teachers may introduce this principle to an ext able Year 6 children.
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fast reminder: a many is a number that deserve to be split by one more number a certain variety of times there is no a remainder.
The basic rule is to list the multiples that the larger number and stop as soon as you get to a multiple of the smaller sized number. Because that example:What is the lowest common multiple of 3 and 8?Multiples of 3 room 3, 6, 9, 12, 15, 18, 21, 24...Multiples that 8 room 8, 16, 24, 32, 40...So the lowest usual multiple of 3 and also 8 is 24.
A an ext difficult challenge may be to ask because that the lowest usual multiple of a group of three or four numbers.
because that example:What is the lowest common multiple of 6, 15 and also 20?Start writing out the multiples choose this:Multiples that 6 space 6, 12, 18, 24, 30, 36Multiples that 15 space 15, 30, 45, 60Multiples the 20 space 20, 40, 60, 80Both 6 and 15 have actually multiples the 30, but 20 cannot have actually a multiple of 30. Both 15 and 20 have a many of 60. I understand that 6 additionally has a multiple of 60, since 6 x 10 = 60.Because 60 is the only multiple all three numbers have actually in common, 60 is the lowest typical multiple the the three numbers.

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