Number System Factors MCQ Set 2

NUMBER SYSTEM FACTORS MCQ SET 2

1. The sum of even divisors of 4096 is :

(a) 6144

(b) 8190

(c) 8192

(d) 6142

Show Answer

Answer: B

2. The sum of even factors of 1800 is :

(a) 403

(b) 6045

(c) 6448

(d) 5642

Show Answer

Answer: D

3. Consider the number N = 12^6 x 3^8 x 5^3 .
Which of the following statements is/are correct?
1. The number of odd factors of N is 60.
2. The number of even factors of N is 720.
Select the correct answer using the code given below:

(a) Only 1

(b) Only 2

(c) Both 1 and 2

(d) Neither 1 nor 2

Show Answer

Answer: C

4. What is the sum of reciprocal of all factors of number 360.

(a) 2.65

(b) 3.25

(c) 3.48

(d) 4.20

Show Answer

Answer: B

5. Find the product of all factors of 544?

(a) 12

(b) 544^3/2

(c) 558

(d) 544^6

Show Answer

Answer: D

6. Find the product of all factors of 1800?

(a) 1800^18

(b) 1800^8

(c) 900^18

(d) 900^9

Show Answer

Answer: A

7. If 847 x 385 x 675 x 3025 = 3^a x 5^b x 7^c x 11^d , then the value of ab – cd is :

(a) 4

(b) 5

(c) 1

(d) 7

Show Answer

 Answer: B

8. Find the number of prime factors in the product (30)^5 x (24)^5 .

(a) 45

(b) 35

(c) 10

(d) 30

Show Answer

Answer: B

9. What is the distinct prime factors of the number 26381 ?

(a) 29 , 17 , 37

(b) 31 , 17 , 47

(c) 19 , 37 , 13

(d) 23 , 31 , 37

Show Answer

Answer: D

10. The sum of divisor of 10800 which are perfect square .

(a) 393120

(b) 6240

(c) 5200

(d) 5460

Show Answer

Answer: D