Multiples
What is the first five multiples of 8
8,16,24,32,40
List all the factors of 16
1,2,4,8,16
What is the lowest common multiple of 3 and 4?
12
A number that has only two factors the number 1 and itself.
Bonus 100 points if you can list 10 examples.
What is a prime number?
2,3,5,7,11,13,17,19,23,29,31,37,41,43
At a charity dinner, there are lots of tables with the same number of chairs at each one.
Suppose the charity organizers sold 180 dinner tickets. How many tables might they need to seat 180 people? How many chairs would be at each table?
18 tables with 10 chairs at each
20 tables with 9 chairs at each
30 tables with 6 chairs at each
36 tables with 5 chairs at each
What is the first seven multiples of 4
4,8,12,16,20,24,28
List all the factors of 36
1,2,3,4,6,9,18,36
What is the lowest common multiple of 8 and 6?
24
A number that can be divided evenly by another number without having a remainder
What is a Multiple?
There are 88 children participating in a track and field event. If the children are placed in equal groups, how many groups might there be?
groups of(factors): 2, 4, 8, 11, 22, 44
Why not 1 and 88?
What is the eighth multiple of 10
80
List any prime factors of 32
2
What is the lowest common multiple of 2, 3, 11?
66
A number that has more than two factors
Bonus 100 points if you can list 10 examples
What is a composite number?
4,6,8,9,10,12,14,15,16,18,20,21,22,24,25,26,27,28
Patan uses a bead loom to make a bracelet. She wants to use all 84 beads, and to put the beads in rows of equal length. Patan also wants the number of beads in each row to be a factor of 84 that is prime. How many beads could Patan put in each row?
2,3,7,
What is the the tenth multiple of the lowest prime number?
20
List any prime factors of 60 using a factor tree
2,3,5
What is the lowest common multiple of 17, 34, 4
68
A multiple that is shared by two or more given numbers
What is a Common Multiple?
At the gym, Hillary swims every 6 days, runs every 4 days and cycles every 16 days. If she did all three activities today, in how many days will she do all three activities again on the same day?
16, 32, 48, 64, 70
6, 12, 18, 24, 30, 36, 42, 48, 54
4, 8, 12, 16, 20, 24, 28, 32, 36, 40, 44, 48, 52
What are the first five multiples of the first 3 digit prime number?
101, 202, 303, 404, 505
List all factors of 78 using the rainbow strategy
1,2,3,6,13,26,39,78
What is the lowest common multiple of 4,6,7 and 9
4,8,12,16,20,24,28,32,36,40,44,48,52,56,60,64,68,72,76,80,84,88,92,96,100,104,108,112,116,120,124,128,132,136,140,144,148,152,156,160,164,168,172,176,180,184,188,192,196,200,204,208,212,216,220,224,228,232,236,240,244,248,252
6,12,18,24,30,36,42,48,54,60,66,72,78,84,90,96, 102,108,114,120,126,132,138,144,150,156,162,168,174,180,186,192,198,204,210,216,222,228,234, 240,246,252
7,14,21,28,35,42,49,56,63,70,77,84,91,98,105,112,119,126,133,140,147,154,161,168,175,182,189,196,203,210,217,224,231,238,245,252
9,18,27,36,45,54,63,72,81,90,99,108,117,126,135,144,153,162,171,180,189,198,207,216,225,234,243,252
One of two numbers that divide evenly into a given number without remainders
Factor
I want to plant 45 sunflowers, 81 corn plants and 63 tomato plants in my garden. If I put the same number of plants in each row and each row has only one type of plant , what is the greatest number of plants I can put in one row?
Factors of 45: 1,3,5,9,15,45
Factors of 81: 1,3,9,17,81
Factors of 63: 1,3,7,9,21,63
9 is the greatest common factor, so 9 is the most amount of plants you can plant in each row to keep the rows with the same amount of plants.