GCF / LCM Concept Check

Find the greatest common factor of 32 and 48

• 2
• 8
• 16
• 18

Tags

CCSS.6.NS.B.4

Sara had 16 red flowers and 24 yellow flowers.  She wants to make bouquets with the same number of each color flower in each bouquet.  What is the greatest number of bouquets that she can make?

• 4
• 2
• 48
• 8

Tags

CCSS.6.NS.B.4

Is 5 prime or composite? 

• Prime
• Composite

Tags

CCSS.4.OA.B.4

A prime number

• has one factor
• has more than 2 factors
• has 100 factors
• has exactly 2 factors: 1 and the number

Tags

CCSS.4.OA.B.4

Use a number tree to find the prime factorization of 48

• 4x2x6
• 4x2x2x3
• 3x2x2x2x2
• 12x4

Find the Least Common Multiple (LCM) of 38 & 12

• 2
• 228
• 336
• 448

Tags

CCSS.6.NS.B.4

All of these are prime except

• 3
• 9
• 2
• 13

Tags

CCSS.4.OA.B.4

What is the LCM of 22 and 6? 

• 6
• 22
• 42
• 66

Tags

CCSS.6.NS.B.4

GCF of 24 and 56

• 2
• 4
• 6
• 8

Tags

CCSS.6.NS.B.4

The LCM is _________________ than __________________ of the original numbers.

• smaller; one

• smaller; both

• larger; one

• larger; both