LCM and GCF Vocab

LCM

(Least Common Multiple)

Vocabulary Time !

Definition 1

LCM !

● Least - smallest in

amount

● Common (com.mon)

- shared numbers.

Multiple Choice

What does "Least" mean?

• Smallest

• Largest

• Biggest

• All the above

Multiple Choice

What does "Common" mean?

• Opposite

• Separate

• Shared

• All the above

Definition 2

● Multiple (mul.ti.ple) -

the numbers you get
when you multiply a
certain number

● The LCM means

Lowest Common
Multiple.

Multiple Choice

What does the word "Multiples" remind you of?

• Add

• Multiply

• Divide

• All the above

Example 1

LCM Ideas and Key Words

a situation occurring again at the same time

Smallest

First

Least

Next

Repeated over and over

Multiple items

When both will meet again

When both will be equal

Example 2

Spongebob and Patrick both did
their laundry today. Spongebob
does laundry every 6 days and

Patrick does laundry every9
days.

How many days will it be until

Ronald and Tim both do

laundry on the same day

again?

Multiple Choice

What key sentence did you see in the work problem?

• Spongebob

• On the same day again

• Patrick

• Laundry

GCF

(Greatest Common Factor)

Vocabulary Time !

Definition 1

GCF !

● Greatest - Highest in

amount

● Common (com.mon) -

shared numbers.

Multiple Choice

What does "Greatest" mean?

• Smallest

• Largest

• Biggest

• All the above

Multiple Choice

What does "Common" mean?

• Opposite

• Separate

• Shared

• All the above

Definition 2

● Factor (fac.tor) - a number

that divides another
number, leaving no
remainder

● The GFC means Greatest

Common Factor.

Multiple Choice

What does the word "Factor" remind you of?

• Add

• Multiply

• Divide

• All the above

Example 1

GCF Ideas and Key Words

splitting things into smaller sections

arranging something into groups

distributing equally

Greatest

Largest

Maximum

Dividing something

Cutting something into pieces

Example 2

Scooby doo is helping his classmates get
ready for their math test by making them
identical packages of pencils and
calculators.

He has72 pencils and 24 calculators and
he must use all of the pencils and
calculators.

If Scooby doo creates the greatest
number of identical packages possible,
how many pencils will be in each
package?

Multiple Choice

What key words did you see in the work problem?

• Scooby doo

• Greatest Number and Each package

• Pencil

• Calculator