Test #2

The GCF of x and y is ___________.

• the smallest number that can be divided by x and y

• the largest number that can divide x

• the largest factor of x and y

• the smallest factor of x and y

The LCM of x and y is ___________.

• the smallest number that can be divided by x

• the smallest multiple of x and y

• the largest factor of x and y

• the smallest factor of x and y

Given the prime factorization of 2 numbers, how do you find their GCF?

• circle the factors they share and multiply them together

• multiply all the numbers in the factorization

• write a number you want to see and then add the rest to make the 2nd number

Given the prime factorization of 2 numbers, how do you find their LCM?

• circle the factors they share and multiply them together

• multiply all the numbers in the factorization

• write a number you want to see and then add the rest to make the 2nd number

What is the GCF of X = 2 x 3 x 3 x 5 and Y = 2 x 3 x 5 ?

• 2 x 3

• 2 x 3 x 3 x 5

• 2 x 3 x 5

What is the LCM of X = 2 x 3 x 3 x 5 and Y = 2 x 3 x 5 ?

• 2 x 3

• 2 x 3 x 3 x 5

• 2 x 3 x 5

• 14

• 82

• 123