GCF/LCM
Word Problems
Prime Factorization
Vocabulary
Mystery Number Puzzles
100
What is GCF of 2 and 4?
What is 2
100
At a art store, every 5th customer received a free pencil. There were 15 customers. How many received a free pencil?
What is 3
100
8
What is 2 cubed
100
What is the definition of a prime number?
What is a number with only 2 factors, one and itself
100
I am a prime number. I am greater than 10 but less than 20. The sum of my digits is 2.
What is 11
200
What is the LCM of 5 and 10?
What is 10
200
At PETCO, every 5th customer received a free dog toy and every 10th customer receive a free cat toy. If there were 30 customers, how many would receive both a free dog toy and a free cat toy?
What is 3
200
16
What is 2 to the fourth
200
What is the definition of an integer?
What is a positive or negative whole number
200
I am a square number less than 25. The product of my digits is 6. I am divisible by 4.
What is 16
300
What is the GCF of 24 and 48?
What is 24
300
Destiny just received two separate gifts from her great-great-grandmother. The first gift is a box of 18 chocolate candy bars, and the second gift is a pack of 12 cookies. Destiny wants to use all of the chocolate candy bars and cookies to make identical snack bags for her cousins. What is the greatest number of snack bags that Destiny can make?
What is 6
300
48
What is 3 x 2 to the fourth
300
What is the definition of a factor?
What is an integer than can multiplied by another integer to get a product
300
I am an integer that is divisible by 3 and 4. I am an even number. I am greater than 50 and less than 70. The product of my digits is zero.
What is 60
400
What is the GCF and the LCM of 50 and 135.
What is 5 and 1,350
400
Two of the lights at the local stadium are flickering. They both just flickered at the same time. One of the lights flickers every 7 seconds and the other light flickers every 8 seconds. How many seconds until both lights will flicker at the same time again?
What is 56
400
250
What is 5 cubed x 2
400
What is a multiple?
What is the result of multiplying a number by an integer
400
I am an odd number greater than 50. I am divisible by 13. My tens digit is a factor of 21. I am less than 100.
What is 78
500
What is the GCF and the LCM of 24 and 150.
What is 600 and 6
500
There are 72 fifth graders boys and 90 sixth graders on the math team. For the next math competition, Mr. Johnson would like to arrange all of the students in equal rows with only fifth graders or only sixth graders in each row. What is the greatest number of students that can be in each row?
What is 18
500
475
What is 19 x 5 squared
500
What is a square number?
What is the product when you multiply an integer by itself
500
I am a three digit number. The sum of my digits is 18. My hundreds digit is 6 less than my ones digit. I am divisible by 3. The sum of my hundreds digit and my tens digit is 9. The product of all of my digits is 162.
What is 369
M
e
n
u