Be My Multiple, I'll be Your Factor Test 8

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Be My Multiple, I'll be Your Factor Test 8

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Weekly Quiz Competition

Question 1
1 / -0

Which of the following statements is correct?

A
Every prime number is odd.

B
Every even number is composite.

C
The sum of two odd numbers is always odd,

D
The HCF of two given numbers is always a factor of their LCM
Question 2
1 / -0

Find the number of multiples of 5.

A
100

B
600

C
700

D
infinite
Question 3
1 / -0

How many prime numbers are there "between 1 to 100"?

A
25

B
24

C
30

D
60

Solution

Prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 31, 37, 41, 43, 47, 53, 59, 61, 67, 71, 73, 79, 83, 89, 97 = 25
Question 4
1 / -0

Which of the following is a perfect square?

A
28

B
26

C
25

D
2.4

Solution

25 is the perfect square of 5. rest all options are not perfect squares of any natural number.
Question 5
1 / -0

What is the HCF of two prime numbers?

A
2

B
1

C
40

D
None of these
Question 6
1 / -0

What is the LCM of 36, 75 and 80?

A
3600

B
3500

C
3400

D
3000

Solution

LCM = 2×3×5×2×3×5×4 = 3600
Question 7
1 / -0

Product of two numbers = ___________

A
LCM× HCF

B
First No.×Second No.

C
1

D
None of these
Question 8
1 / -0

The sum of the factors of 25 is

A
7

B
6

C
31

D
26

Solution

Factors of = 25 = 5² are 1, 5, 25 which can also be represented as: 5²= (2+1) = 3 (i.e.3 factors)
Question 9
1 / -0

A number is divisible by 24 if ___________

A
It is divisible by 6 and 4 both

B
It is divisible by 8 and 3 both

C
It is divisible by 12 and 2 both

D
All of these

Solution

It is divisible by 8 & 3 because 8 and 3are co-prime
Question 10
1 / -0

Prime factorization of 512 × 343

A
2⁹×7³

B
2⁴×3²

C
2⁴×3²

D
None of these

Solution

512×343 = 2×2×2×2×2×2×2×2×2×7×7×7=2⁹ x 7³

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Be My Multiple, I'll be Your Factor Test 8

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Be My Multiple, I'll be Your Factor Test 8

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SHARING IS CARING

Question 1

Every prime number is odd.

Every even number is composite.

The sum of two odd numbers is always odd,

The HCF of two given numbers is always a factor of their LCM

Question 2

100

600

700

infinite

Question 3

25

24

30

60

Solution

Question 4

28

26

25

2.4

Solution

Question 5

2

1

40

None of these

Question 6

3600

3500

3400

3000

Solution

Question 7

LCM× HCF

First No.×Second No.

1

None of these

Question 8

7

6

31

26

Solution

Question 9

It is divisible by 6 and 4 both

It is divisible by 8 and 3 both

It is divisible by 12 and 2 both

All of these

Solution

Question 10

29×73

24×32

24×32

None of these

Solution

User

Question Analysis

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Score

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Rank

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2⁹×7³

2⁴×3²

2⁴×3²