Ch. 4.3 - Number Theory

Find the LCM (12,54)

• 208

• 6

• 108

• 1

Find the GCD(24,36)

• 36

• 4

• 2

• 12

Solve the GCD of 48 and 18 using the Euclidean Algorithm Method.

• 12

• 6

• 0

• 144

Solve the GCD of 36 and 48 using Prime Factorization

• 4

• 12

• 8

• 2

There are several methods for finding GCD and LCM.

Which are colored rods method, the number line method, the prime factorization method, and

What is the least common multiple (LCM) of 8 and 5?

• 50
• 40
• 5
• 8