Pre-Algebra Ch 4 1 & 2

Which is the prime factorization of 12? 

• 2 x 6
• 2 + 2 + 2 + 2 + 2 + 2 
• 2² x 3
• 1 x 2² x 3

Using a Factor Tree, find the prime factorization of 75.  

• 5² x 3
• 5 x 5 x 3
• 3² x 5
• 15 x 5

Write 76 in prime factorization. You can use the ladder or factor tree. Show your work.

• 2² x 19
• 2 x 19²
• 2 x 19
• 2² x 19²

One is 

• prime
• composite
• not prime or composite
• the loneliest number that you'll ever do

Tags

CCSS.4.OA.B.4

Find the prime factorization for 80

• 4² ⋅ 5

• 2⁴ ⋅ 5

• 2 ⋅ 2 ⋅ 2

• 8 ⋅ 5 ⋅ 2

What is the greatest common factor of 48x²and 32x³?

• 8x²
• 16x²
• 16x
• 96x³

What is the GCF of 20 and 30?

• 5
• 2
• 10
• 20

What is the greatest common factor of 30x and 56x²

• 4x

• 6x

• 2x

• x

What is the greatest common factor of the monomials a²b⁵ and a³b³

• a²b³
• a²b⁵
• a³b³
• a³b⁵

Determine the greatest common factor of 
-5j³k⁷m² and -20jk²m⁵

• -5jk²m²
• -20j³k⁷m⁵
• -5j³k⁷m⁵
• -20jk²m²