What is the Least Common Multiple of 98 and 28?

Use prime factorization:
98 = 2*7*7
28 = 2*2*7

In order to get a number that is divisible by BOTH 98 and 28, you need:
two 2's and two 7's

2*2*7*7 = 196

It is the smallest number that can be divided exactly (without remainder) by 98 and by 28.

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If you were looking for the least common divisor, you would use what is common for both numbers:

one 2 and one 7
2*7 = 14

This is the biggest number that can divide both 98 and 28.

22

196

I agree with everyone exept Chicizino. Chicizino did the least common denominator. There is no need for me to say 196

98 = 2 x 7 x 7
28 = 2 x 2 x 7
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The LCM of 98,28 is:
2 x 2 x 7 x 7
= 196

98=7*7*2
28=2*7*2
LCM=2*7*7*2= 196
ps:28*8!=196=28*7

196.
98*2 = 196 and 28*8 = 196.
14 is the least common divisor...

98/7, 28/2 =14.