Prime/Composite Numbers
What is the definition of a Prime number?
Any whole number, greater than 1, with EXACTLY 2 factors (1 and itself)
Look at the following pattern:
2, 5, 8, 11, 14
What is the rule of this pattern?
Rule: +3 (add 3)
3x9
27
What are the factor pairs of 24?
1 and 24; 2 and 12; 3 and 8; 4 and 6
What are the first 3 multiples of 5?
5, 10, 15
Is 27 a prime or composite number?
Composite
Look at the following pattern:
2, 4, 8, 16, 32
What is the rule for this pattern?
8x7
56
What are the factor pairs of 48?
1 and 48, 2 and 24, 3 and 16, 4 and 12, 6 and 8
What are the first 4 multiples of 8?
8, 16, 24, 32
True or False:
All Prime numbers are odd
False, 2 is a Prime number
Determine the rule of the following pattern:
5, 9, 13, __, 21, 25, __
What is the rule of this pattern?
What should be in the blank spaces if we follow this rule?
Rule: +4 (add 4)
17 and 29
12x11
132
What are all the factors of 49?
1, 7, 49
List the first 5 multiples of 9
9, 18, 27, 36, 45
Which of the following are Prime numbers (Select All that are correct):
3; 15; 22; 43; 50; 99
3 and 43
Henry is given a pattern with the following rule:
Rule: x3
If the first number in the pattern is 1, what are the next 3 numbers in the pattern?
3, 9, 27
4x9
36
What is a factor pair?
a set of two numbers that are multiplied to make a product (or multiple of both numbers)
List the first 5 multiples of 11
11, 22, 33, 44, 55
Is 36 a prime or composite number? Write the factors of 36.
Composite:
1 and 36; 2 and 18; 3 and 12; 4 and 9; 6 and 6
1, 2, 3, 4, 6, 9, 12, 18, 36
Jimmy is told that each row should have 1 fewer can on it than the row before. If the first row has 9 cans, how many cans are on the next 3 rows?
8, 7, 6
20x15
300
One factor in a factor pair for the number 32 is 8. What is the other factor?
4
List the first 5 multiples of 12
12, 24, 36, 48, 60