Overlake 6th Grade GCF and LCM quiz

What is the GCF of 66 and 188?

2

You are the commissioner of your child's soccer league. There are 20 seven year old players. There are also 120 eight year old players, and then 60 nine year old players. How many teams can you make?

20 teams

What is the GCF of 90k and 30k?

30k

What is the GCF of 99 and 122?

33

What is the LCM of 6 and 73?

438

What is the LCM of 18 and 24?

72

What is the GCF of 42xy and 56y?

7y

What is the LCM of 90k and 30k?

90k

The Greatest Common Factor is what: A) A common factor of 2 numbers B) The smallest shared multiple C) The biggest common factor of any amount of numbers

C

True or False: For numbers to be relatively prime they both have to be odd.

False

True or False: For numbers to be relatively prime, they have to be prime numbers.

False

True or False: The GCF of 99 and 135 is 3

False

Are 92 and 58 relatively prime?

No

True or False: The LCD of 56/63 is 7.

True

True or False: To find the LCD of a number, you have to find the GCF.

True

For numbers to be relatively prime, one of the numbers has to be odd.

True.

Are 47 and 18 relatively prime?

Yes