Finding Factors
What are the factors of 12?
1, 2, 3, 4, 6, 12
Name the first three multiples of 5.
5, 10,15
Is 7 prime or composite?
Prime
Rule: Add 2
Terms: 2, 4, 6, 8, __
10
If the rule is +3, what is the output for an input of 5?
8
Which number is NOT a factor of 24: 4, 6, 7 or 8?
7
Which number is a multiple of 7?
28, 30 or 32?
28
Composite
Rule: Subtract 3
Terms: 30, 27, 24, __, __,
21, 18
Input: 2, 4, 6, 8
Output: 10, 12, 14, 16
What is the rule?
Add 8
How many factors does the number 18 have?
6- 1, 2, 3, 6, 9, 18
What is the least common multiple (LCM) of 4 and 6?
12
Which of these numbers is prime?
9,11,15,21?
11
Terms: 1, 2, 4, 8, __, __
16, 32
Fill in the missing output:
Rule: Multiply by 4
Input: 3, 5, 7, __
Output: 12, 20, 28, __
Input- 9
Output- 36
Find the greatest common factor (GCF) of 36 and 54.
18
List the multiples of 9 between 20 and 70.
27, 36, 45, 54, 63
True of False:
Every even number greater than 2 is composite.
True
Rule: Multiply by 3, then subtract 1
Start: 2 -> __ -> __ -> __
5, 14, 41
A vending machine adds $0.50 for every extra drink you buy.
If you buy 3 drinks it costs $2.50.
How much will 6 drinks cost?
A rectangular garden has an area of 60 square feet.
How many different pairs of whole-number lengths and widths are possible?
4 Pairs- (1,60), (2,30), (3,20), (4,15), (5,12), (6,10)
A bell rings every 4 minutes and another ever 6 minutes.
After how many minutes will they ring together again?
12 Minutes- LCM of 4 and 6.
A number has exactly three factors: 1, 5 and itself.
What is the number and is it prime or composite?
25, Composite
Rule: Add 5, then subtract 2
Terms: 3, 6, 9, __, __, __
12, 15, 18
A table shows this rule: Multiply the input by 6, then add 2.
If the output is 38, what was the input?
6