Factors
List all of the factors of 32.
1, 2, 4, 8, 16, and 32
List 3 multiples of 8 that are less than 50.
8, 16, 24, 32, 40, 48
What is the greatest common factor of 12 and 15
3
What is the least common multiple of 3 and 7?
21
Antonio's mom gave him 30 euros while Daniela's mom gave her 36 euros. They want to give the same amount of money to a charity. What is the greatest donation they can make?
6 euros
List all of the common factors of 12 and 20.
1, 2, and 4
List 3 common multiples of 2 and 6.
6, 12, 18, 24, 30, 36, 42, 48, etc.
What is the greatest common factor of 24 and 20?
4
What is the least common multiple of 4 and 9?
36
You bring snacks for your football team every fifth game. Every third game is played at night. When will be the first time that you bring snacks to a night match?
15th game
List all of the factors of 42.
1, 2, 3, 6, 7, 14, 21, 42
List all the common multiples of 6 and 8 that are less than 50.
24 and 48
What is the greatest factor of 16 and 36?
4
What is the least common multiple of 2, 3, and 5?
30
A salesman goes to New York every 15 days for one day and another every 24 days, also for one day. Today, both are in New York. After how many days both salesman will be again in New York on same day?
120 days
List all of the factors of 52.
1, 2, 4, 13, 26, and 52
List 4 multiples of 7 greater than 10 but less than 50.
14, 21, 28, 35, 42, 49
What is the great common factor of 50, 35, and 15?
5
What is the least common multiple of 20 and 12?
60
May has 15 oranges, 9 peaches and 18 pears. She wants to put all of the fruit into baskets with each basket having the same number of pieces of fruit in it. Without mixing the fruit, what is the greatest number of pieces of fruit May can put in each basket?
3
List all of the common factors of 24 and 36.
1, 2, 3, 4, 6, 12
List all the common multiples of 12 and 18 that are less than 75.
36 and 72
What is the greatest common factor of 64 and 80?
16
What is the least common multiple of 21 and 24?
168
A bell rings every 18 seconds, another every 60 seconds. At 5.00 pm the two ring simultaneously. At what time will the bells ring again at the same time?
5.03 pm