The three common multiples between 1 and 100 for 15 and 9 are

Question

Sahill says that the numbers 15 and 9 have three common multiples between 1 and 100.

a. Is Sahill​ correct? If​ so, what are the three common​ multiples? If​ not, what common multiples are​ there?

b. What is the least common multiple of 15 and​ 9?

a. Select the correct choice and fill in the answer box to complete your choice.

​(Type a whole number. Use a comma to separate answers as​ needed.)

A.

Sahill is correct. The three common multiples between 1 and 100 for 15 and 9 are

nothing.

B.

Sahill is incorrect. The list of common​ multiple(s) between 1 and 100 for 15 and 9 is

Answer 1

Hi Syria,

Sahill is incorrect for the multiples between 1 and 100.

There are 2 common multiples for 9 and 15 between 1 and 100 and they are 45 and 90.

Multiples of 9 are: 9, 18 ,27, 36 , 45 ,54 , 63, 72 , 81 ,90 ,99

Multiples of 15 are: 15, 45, 60, 75, 90

The least common multiple would be 45.