IXL | Least common multiple of three or four numbers | 6th grade math

or

What is the least common multiple of 6, 7, and 3?

ref_doc_title.

or

Learn with an example

question

What is the least common multiple of 8, 12, and 7?

key idea

The least common multiple is the smallest whole number that is a multiple of each of two or more numbers.

solution

List the multiples of each number. Find the smallest number that appears in every list.

Multiples of 8:	8, 16, 24, 32, 40, 48, 56, 64, 72, 80, 88, 96, 104, 112, 120, 128, 136, 144, 152, 160, 168
Multiples of 12:	12, 24, 36, 48, 60, 72, 84, 96, 108, 120, 132, 144, 156, 168
Multiples of 7:	7, 14, 21, 28, 35, 42, 49, 56, 63, 70, 77, 84, 91, 98, 105, 112, 119, 126, 133, 140, 147, 154, 161, 168

The least common multiple of 8, 12, and 7 is 168.

Looking for more? Try these:

Lesson: Least common multiple

or

$Confetti$

Excellent!

Now entering the Challenge Zone—are you ready?

Questions
answeredQuestions

0

Time
elapsedTime

hr	min	sec
00	00	04

SmartScore
out of 100
IXL's SmartScore is a dynamic measure of progress towards mastery, rather than a percentage grade. It tracks your skill level as you tackle progressively more difficult questions. Consistently answer questions correctly to reach excellence (90), or conquer the Challenge Zone to achieve mastery (100)! Learn more

0

Teacher tools

Work it out

Not feeling ready yet? These can help:

F.8Least common multiple

Lesson: Least common multiple