G.C.F. or L.C.M.?
One neon sign flashes "061 Rocks" every 20 seconds. A second neon sign flashed "JSW is the best" every 25 seconds. How much time will pass before they flash at the same time?
What is L.C.M.
100
Is 36 prime or composite? Why?
What is composite, it has more than two factors
200
A number that has factors other than just one and itself
What is composite
200
Name a multiple of 15
What is 15, 30, 45, 60, 75 ...
200
What is the prime factorization of 53?
What is 53 is a prime number
200
G.C.F. or L.C.M.?
Mrs. Dodick is packing sacks for treats at Halloween. Each sack has to have exactly the same items in it or the students will complain. She has 96 small candy bars and 64 small popcorn balls. What is the greatest number of treat sacks she can make? How many of each kind of treat is in one sack?
What is G.C.F.
200
How many factors does the number 20 have?
What is 6 factors
300
Two numbers that multiply together to get a product
What is factor
300
What is the G.C.F. of 30 and 42?
What is 6
300
What is the prime factorization of 150?
What is 2 x 3 x 5 x 5
300
"Kellen" and "Kara" are the local names for two lighthouses that guard a dangerous part of the coast. Kellen blinks every 12 seconds and Kara blinks every 8 seconds. They blink together at midnight. How many seconds will pass before they blink together again?
What is L.C.M. = 24 seconds
300
What is the largest number that will evenly divide into two other numbers?
What is greatest common factor
400
Numbers where both factors are the same
What is square number
400
What is the L.C.M of 30 and 42?
What is 210
400
Show the prime factorization of 72 using exponents.
What is 2^3 x 3^2
400
Mr. Higley is planning a party for his son. He has 36 prizes and 24 balloons. What is the most number of children that can attend the party so that each child gets an equal number of prizes and balloons?
What is 12 children
400
Identify three square numbers from 1 - 100.
What is (answers may vary)
500
The product of all the prime factors of a number
What is prime factorization
500
Find the G.C.F. and L.C.M of 36 and 90 using a Venn Diagram
What is G.C.F. = 18 and L.C.M. = 180
500
Find the number with the given prime factorization:
2 x 3^3 x 5^2 =
What is 2 x 3 x 3 x 3 x 5 x 5 = 1,350
500
Two radio stations are playing the #1 hit song “Mr. Bamberger Rocks”. WJSW plays the song every 18 minutes. WSIX plays the song every 24 minutes. Both stations play the song at 3:00 p.m. when school lets out. How many minutes will pass until both stations will play the song at the same time again?
What is 72 minutes
500
Find the dimensions of all the rectangles that can be made from 42 square tiles.
What is 1 x 42, 42 x 1, 2 x 21, 21 x 2, 3 x 14, 14 x 3, 6 x 7, 7 x 6