What is the greatest common factor (GCF) of 10b² and 10?

• 2
• 5
• 10
• 10b

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

• 8x²
• 16x²
• 16x
• 96x³

What is the greatest common factor of 28y²and 49y²?

• 7y
• 21y²
• 196y²
• 7y²

What is the greatest common factor of 42xy² and 28x³y?

• 84x³y²
• 14y
• 14xy
• 14xy²

What is the greatest common factor of 20a²b² and 50b³?

• 100a²b³
• 10b³
• 10ab²
• 10b²

What is the least common multiple of 40a²b and 48ab²?

• 240a²b²
• 5ab
• 8ab
• 4ab

What is the LCM of 18k and 15k³ ?

• 3k²
• 3k³
• 90k³
• 5k

Which of the choices is NOT a factor of 24?

• 2
• 3
• 4
• 5

Tags

CCSS.4.OA.B.4

Which of the choices is a factor of 10?

• 2
• 4
• 6
• 8

Tags

CCSS.4.OA.B.4

What is the greatest common factor (GCF) of 
10a⁴ , 16a and 10a² ?

• 2a
• 2a²
• 10a
• 10a²