1. Find the LCM Find the LCM of 168 and 180. NumberPrime FactorizationExponential Form 168 180 Answer: The LCM of 168 and 180 is 2520. 2 ● 2 ● 2 ● 3 ● 72 3 ● 3 ● 7 2 ● 2 ● 3 ● 3 ● 52 2 ● 3 2 ● 5 The prime factors of both numbers are 2, 3, 5, and 7. Multiply the greatest power of 2, 3, 5, and 7 appearing in either factorization. LCM=2 3 ● 3 2 ● 5 ● 7 =2520 1681802 84902 42453 1415 GCF LCM

2. A.24 B.144 C.288 D.13,824 Find the LCM of 144 and 96.

3. The LCM of Monomials Find the LCM of 12x 2 y 2 and 6y 3. 1262 63 21 3

4. A.6ab B.9a 2 b 3 C.72a 2 b 3 D.432a 3 b 4 Find the LCM of 18ab 3 and 24a 2 b.

5. Find the LCD 2084 52

7. A.< B.> C.= D.none of the above