LCM GCF Divisibility

What is the greatest common factor (GCF) of 35 and 49?

• 5

• 3

• 7

• 4

What is the greatest common factor (GCF) of 15 and 35?

• 15

• 3

• 7

• 5

What is the least common multiple (LCM) of 2 and 3?

• 6

• 8

• 20

• 10

What is the least common multiple (LCM) of 5 and 20?

• 4

• 5

• 20

• 100

Which pair of numbers has a GCF of 10 AND a LCM of 60?

• 2 and 5

• 20 and 30

• 5 and 10

• 15 and 20

Tags

TEKS.MATH.6.7A

If a number passes the test for 2 and 3 it is divisible by 6.

• True

• False

What is the GCF (Greatest Common Factor) of 12 and 6?

• 1

• 6

• 2

• 3

What is the greatest common factor (GCF) of 12 and 28?

• 3

• 6

• 2

• 4

What is the divisibility rule for 3?

• Add up the digits. The sum must be even and divisible by 3.

• The digits must add up to 9.

• The last digit must be a 3.

• Add up the digits. The sum must be divisible by 3.

Find the LCM of 12 and 6.

• 1

• 6

• 2

• 12