Number theory

Question 1

Find the GCF of A and B. If: A=2^2	imes3	imes5and B=2^3	imes7

Accepted Answer

2^2

Question 2

The GCF of 12 and 20 is:

Accepted Answer

4

Question 3

Select the number that is divisible by 15.

Accepted Answer

645

Question 4

Which of the following is not a factor of A if A=3^3	imes2?

Accepted Answer

3	imes2^2

Question 5

Two numbers are relatively prime numbers if their GCF is 1.

Accepted Answer

True

Question 6

The GCF of 32 and 33 is:

Accepted Answer

1

Question 7

All the following are true EXCEPT:

Accepted Answer

235^0=0

Question 8

Evaluate: 3^4

Accepted Answer

81

Question 9

Which number is not divisible by 3?

Accepted Answer

203

Question 10

The GCF of 19 and 27 is:

Accepted Answer

1

Question 11

Any number is divisible by 1 and itself.

Accepted Answer

True

Question 12

The prime factorization of 45 is:

Accepted Answer

3^2	imes5

Question 13

All even numbers are composite.

Accepted Answer

False

Question 14

The GCF of 12 and 36 is:

Accepted Answer

12

Questions 14