A number that will divide evenly into another number.
100
What is a greatest common factor (GCF)?
The biggest number that will go evenly into a set of numbers.
100
What is a multiple?
Skip counting numbers
100
What is a least common multiple (LCM)?
The smallest number that a set of numbers can go into.
200
Express 42 as a product of its prime factors.
2 x 3 x 7
200
Express 150 as a product of its prime factors.
2 x 3 x 5 x 5
200
What are the common factors of 21 and 63?
1, 3, 7, and 21
200
What are the common factors of 35 and 70?
1, 5, 7, 35
200
What is the greatest common factor of 8 and 12?
4
300
What is the greatest common factor of 42 and 32.
2
300
What are the first three common multiples of 4 and 5?
20, 40, 60
300
What are the first three common multiples of 9 and 21?
63, 126, 189
300
What is the least common multiple of 6 and 15?
30
300
What is the least common multiple of 8 and 11?
88
400
What is the square of 14?
196
400
What is the square of 30?
900
400
What is the square root of 169?
13
400
What is the square root of 484?
22
400
What is the cube of 4?
64
500
What is the cube of 20?
8,000
500
What is the cube root of 1,331?
11
500
What is the cube root of 9,261?
21
500
Find two consecutive whole numbers whose squares differ by 25.
12 and 13
500
Riley is packing 144 pencils, 120 files, and 108 notebooks equally into as many boxes as possible. What is the greatest number of boxes Riley could pack?