West Middle School 6th Grade Pre-AP Flashcards

1

Which two numbers are relatively prime?

5 and 11
21 and 14
9 and 12
6x and 12x

2

What is the GCF of two prime numbers?

Impossible to determine
The smallest number of the two
The largest number of the two
1

3

Nathan is thinking of a # divisible by both 17 & 8. What is the smallest number it could be?

272
136
17
100

4

Which is the prime factorization of 24?

8 x 3
6 x 4
2 x 3 x 2
2 x 2 x 2 x 3

5

Which statement is true?

- 15 is a whole number
All integers are rational.
All rational numbers are positive.
All rational numbers are integers.

6

Composite numbers ...

are always divisible by 2.
can never be rational
have more than two factors
Always have an odd number of factors

7

Two numbers are relatively prime if

if they are both prime numbers.
if their parents are related.
if one number is prime and the other is composite.
they have no common factors

8

What type of number is 57?

Prime
Composite
Irrational
Even

9

Which group contains all composite numbers?

39, 51, 57
2, 4, 6
15, 17, 20
27, 25, 23

10

James hikes every 12 days & swims every 6 days. He did both Monday. When will he do both again?

On a Saturday
On a Monday
On a Sunday
On a Friday

11

Find the Greatest Common Factor of 24 and 36.

36
4
12
72

12

What are the factors of 24?

1, 2, 3, 4, 6, 8,12, 24
1, 8 , 6
1, 2, 4, 6, 8, 24
1, 24

13

Solve:

-x/2
-x/35
- ½ X
x/35

14

You know 906 is divisible by 6 because

It is not divisible by 9.
it's last digit is a 6.
it's an even number.
it's even and the sum of the digits is divisible by 3.

15

What is the GCF of 21 and 70?

10
7
1
3

West Middle School 6th Grade Pre-AP

Questions 15

West Middle School 6th Grade Pre-AP

Questions 15