Prime and Composites
Which of the following is a prime number?
15
16
17
18
17
List all the factors for 4
1, 2, and 4
Which of the following is not a factor of 16?
2
16
3
8
3
What is the product of 6 X 4?
24
In the number 145 what place is the 4?
tens
How many factors do prime numbers have?
2
List all the factors for 12
1, 2, 3, 4, 6, and 12
Which of the following is not a factor of 22?
11
4
2
1
4
What is the product of 5 x 9?
45
In the number 5,290, what is the value of the hundreds place?
200
Is 32 a prime or composite number?
32 is a composite number.
List all the factors for 25
1, 5, and 25
Which of following is not a factor of 27?
2
3
27
9
2
Round 539 to the nearest ten
540
What is 3000+700 + 9 in standard form?
3,709
What are two examples of prime numbers?
Possible examples: 2, 3, 5, 7, 11, 13, etc.
List all the factors for 40
1, 2, 4, 5, 8, 10, 20, and 40
Which of the following is not a factor of 39?
13
3
1
5
5
Round 872 to the nearest hundred
900
What is the expanded form of 16, 382?
10,000 + 6,000 + 300 + 80 + 2
Is 72 a prime or composite number? Why?
Composite because it has more than 2 factors.
Factors of 72:
List all the factors for 32
1, 2, 4, 8, 16, and 32
Which of the following is not a factor of 42?
1. 2
2. 14
3. 6
4. 8
4. 8
What number is a factor of ALL even numbers?
2
Round 583,270 to the nearest hundred.
583,300