Quiz about M2Q1 - Number Theory

Question 1

Which of the following numbers is not composite?

Accepted Answer

61

Answer

24

Answer

40

Answer

66

Question 2

Name the 5th prime number.

Accepted Answer

11

Answer

2

Answer

5

Answer

7

Question 3

How many prime numbers are there between 1 and 100?

Accepted Answer

25

Answer

100

Answer

75

Answer

50

Question 4

Which is the only prime number that is even?

Accepted Answer

2

Answer

14

Answer

22

Answer

17

Question 5

Number 27 is both ...

Accepted Answer

odd and composite

Answer

even and composite

Answer

even and prime

Answer

odd and prime

Question 6

How many prime numbers are there between 80 and 89?

Accepted Answer

2

Answer

1

Answer

3

Answer

4

Question 7

Find the LCM for 3 and 11.

Accepted Answer

33

Answer

11

Answer

22

Answer

44

Question 8

Find the GCF for 40 and 48.

Accepted Answer

8

Answer

2

Answer

4

Answer

16

Question 9

Find the LCM for 8 and 10.

Accepted Answer

40

Answer

20

Answer

32

Answer

60

Question 10

Find the GCF for 22 and 96.

Accepted Answer

2

Answer

8

Answer

4

Answer

6

Question 11

Use a number tree to find the prime factorization of 32

Accepted Answer

2x2x2x2x2

Answer

2x2x2x4

Answer

4x4x2

Answer

2x2x2x2x1

Question 12

Use a number tree to find the prime factorization of 105

Accepted Answer

7x5x3

Answer

11x5x3

Answer

7x5x2x1

Answer

7x5x3x2

Question 13

70 can be evenly divided by which number?

Accepted Answer

All of the above

Answer

2

Answer

5

Answer

10

Question 14

Fermat's prime is of the form

Accepted Answer

$$F_n=2^{2^n}+1$$

Answer

$$F_n=2^n+1$$

Answer

$$F_n=2^2+n$$

Question 15

If it is already 6 o'clock, what time would it be after 17 hours?

Accepted Answer

11:00

Answer

9:00

Answer

10:00

Answer

12:00

Question 16

Using the assigned number of day,

(0=Sunday, 1=Monday, 2=Tuseday, 3=Wednesday, 4=Thursday, 5=Friday, 6=Saturday)

If today is Monday, what day would it be after 25 days?

Accepted Answer

Friday

Answer

Thursday

Answer

Saturday

Answer

Sunday

Question 17

Evaluate (35+62) mod 13

Accepted Answer

(35+62) mod 13=6

Answer

(35+62) mod 13=7

Answer

(35+62) mod 13=10

Answer

(35+62) mod 13=13

Question 18

Evaluate (74-25) mod 8

Accepted Answer

(74-25) mod 8=1

Answer

(74-25) mod 8=6

Answer

(74-25) mod 8=3

Answer

(74-25) mod 8=8

Question 19

In mod 11 arithmetic, find the possible multiplicative inverse of 3.

Accepted Answer

4

Answer

8

Answer

5

Answer

2

Question 20

What is 7 mod 3?

Accepted Answer

1 mod 3

Answer

2 mod 3

Answer

3 mod 3

Answer

0 mod 3

Question 21

What is 57 mod 7?

Accepted Answer

1 mod 7

Answer

0 mod 7

Answer

7 mod 7

Answer

-1 mod 7

Question 22

What is 6 mod 9 + 11 mod 9 congruent to?

Accepted Answer

8 mod 9

Answer

6 mod 9

Answer

7 mod 9

Answer

0 mod 9

Question 23

For Modular Arithmetic what value is the most important?

Accepted Answer

The Remainder

Answer

The Modulo

Answer

The Given Number

Answer

The Divisor

Question 24

Fermat's Little Theorem states that if p is a prime and a is not divisible by p, then:

Accepted Answer

Question 25

Question 25.

Accepted Answer

1

Answer

0

Answer

2

Answer

3

Question 26

Question 26.

Accepted Answer

7

Answer

4

Answer

9

Answer

6

Question 27

What is the total number of positive divisors of 12?

Accepted Answer

6

Answer

4

Answer

5

Answer

8

Question 28

Question 28.

Accepted Answer

Question 29

Which number has exactly 9 positive divisors?

Accepted Answer

36

Answer

100

Answer

72

Answer

512

Question 30

Question 30.

Accepted Answer

195

Answer

100

Answer

144

Answer

156

Question 31

Who is this Mathematician?

Accepted Answer

Srinivasan Ramanujan

Answer

G.H. Hardy

Answer

John E. Littlewood

Answer

Gilbert Walker

Question 32

It is a theorem which gives a unique solution to simultaneous linear congruences with co-prime moduli.

Accepted Answer

Chinese Remainder Theorem

Answer

Fermat's Theorem

Answer

Wilson's Theorem

Answer

Euler's Theorem

Question 33

Which of the following numbers has exactly 6 positive divisors?

Accepted Answer

18

Answer

36

Answer

64

Answer

45

Question 34

If d(n)=2 then n must be:

Accepted Answer

prime

Answer

composite

Answer

even

Answer

odd

Question 35

Question 35.

Accepted Answer

15

Answer

7

Answer

8

Answer

16

M2Q1 - Number Theory

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