Least Common and Greatest Common Factor

What is the greatest common factor of 12 and 18?

• 2
• 3
• 4
• 6

What are the factors of 24?

• 1, 2, 3, 4, 6, 8, 12, 24
• 1, 3, 6, 8, 24
• 1, 2, 3, 4, 6
• 1, 24

Tags

CCSS.4.OA.B.4

What is the GCF of 20 and 30?

• 5
• 2
• 10
• 20

What is the distance between 6 and its opposite on a number line?

• 6
• -6
• 12
• 0

Tags

CCSS.6.NS.C.6A

The first 5 multiples of 25 are..

• 5, 10, 15, 20, 25
• 1, 5, 25
• 25, 50, 75, 100, 125
• 5 x 5 = 25

Which of these is NOT a factor of 36?

• 2
• 8
• 12
• 6

Tags

CCSS.4.OA.B.4

GCF stands for...

• great calculator festival
• giant circumference fact
• grouped calculation finder
• greatest common factor

LCM stands for...

• lowest common multiplier
• least common multiple
• longer calculator math
• longest code maker

What is the LCM of 4 and 9?

• 4
• 9
• 18
• 36

Find the Least Common Multiple (LCM) of 2, 3 & 6.

• 2
• 6
• 12
• 24