What is the LCM of 10 and 4?

Question

58199 views around the world

You can reuse this answer
Creative Commons License

Answer 1 · 2017-01-08T15:05:11

#LCM=20#

multiples of #10:{10,color(red)(20),30,40,50,...}#

multiples #4:{4,8,12,16,color(red)(20),24,28,32,36,40,...}#

common multiples#{20,40,....}#

The first shared value is 20 so LCM = 20

Answer 2 · 2017-01-09T10:24:22

20

Multiply 10 by any whole number and the last digit will be 0. So we need the first multiple of 4 that will give a 0 as the last digit.

This is #4xx5=20#

So the LCM = 20