What is the LCM of 3 4 5 6 7?

Answer 1

Write down the factors of each number.

Hence

3 = 1,3

4 = 1,2,2,4

5 = 1, 5,

6 = 1,2,3,6

7 = 1, 7

Hence

1, is common to all number.

2, is common to two numbers

3, is common to two numbers

5 is common to one number

7 is common to one number.

Hence

1 x 2 x 3 x 5 x 7 = 210 the LCM.

Answer 2

You can't find the LCM of a single number. The LCM of 3,4,5 and 6 is 60.

Answer 3

420

3 = 3*1

4 = 2*2

5 = 5*1

6 = 2*3

7 = 7*1

1*3*2*2*5*7 = 420

From ....

Answer 4

It is: 420