Factor Multiple
Presentation
•
Mathematics
•
4th - 7th Grade
•
Hard
Joseph Anderson
FREE Resource
7 Slides • 14 Questions
1
Factors and Multiples
Let's try something new!
2
GREATEST
COMMON
FACTOR
To find the GREATEST COMMON FACTOR, we use the prime factorization and look for over lapping prime factors
OR you can list all the factors and find the LARGEST factor that overlaps (this is risky, because it is easy to forget a factor)
Numbers with no factors in common have a GCF of 1
3
Multiple Select
Select all factors of 6
1
2
3
4
6
4
Multiple Select
What is the prime factorization of 18?
2 x 2 x 2 x 3
2 x 3 x 3
3 x 3 x 3
6 x 3
5
Multiple Choice
What is the greatest common factor of 12 and 18?
2
4
12
6
6
Fill in the Blanks
Type answer...
7
LEAST
COMMON
MULTIPLE
To find the least common multiple, list several multiples of each number and circle the SMALLEST number they have in common!
Numbers that are "relatively prime" have no factors in common and their product will be the least common multiple.
8
Multiple Select
Check all boxes that show a multiple of 8.
8
12
16
24
30
9
Multiple Choice
What is the least common multiple of 8 and 6?
14
12
48
24
10
Multiple Choice
What is the least common multiple of 7 and 9.
16
54
63
81
11
GCF/LCM word problems
If it asks for the "maximum" or the "largest number of groups", you will use the GCF
If you are looking for overlapping dates or amounts that are bigger than the numbers given, you will use the LCM
Think about what is "reasonable"
12
Multiple Choice
Fresh produce is delivered to a restaurant every 4 days. Every 6 days, the restaurant receives a delivery of dried and canned goods. If the produce and dried and canned goods were delivered today, how many days will pass until they are all delivered to the restaurant on the same day again? (hint, we are looking for overlap, use LCM)
2 days
6 days
12 days
24 days
13
Multiple Choice
Miki has 104 nickels and 88 dimes. She wants to divide her coins into groups where each group has the same number of nickels and the same number of dimes. What is the largest number of groups she can have?
13
11
8
4
14
15
16
17
Multiple Choice
1 is a prime number.
True
False.
18
Multiple Choice
Choose the smallest prime number.
5
3
2
19
Multiple Choice
Which of the following is correct prime factorization of 12?
2×6
1×12
2×2×3
3×4
20
Multiple Choice
Find the prime factorization of 18
2 • 9
22 • 3
2 • 32
3 • 6
21
Multiple Choice
Find the prime factorization of 30
22 • 5 • 7
2 • 32
2 • 3 • 7
2 • 3 • 5
Factors and Multiples
Let's try something new!
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