#### Answer

72

#### Work Step by Step

You can solve this question by listing the prime factorization of both numbers. The first number is 8. The prime factorization is $2^3$. The second number is 9. The prime factorization of 9 is $3^2$. Looking at this you can see that they have no factors in common, and therefore the least common multiple is the two numbers multiplied by each other, which equals 72.