Playing with Numbers Test

Result

Playing with Numbers Test - 3

Score
-
out of -
Rank
-
out of -

TIME Taken - -

SHARING IS CARING

If our Website helped you a little, then kindly spread our voice using Social Networks. Spread our word to your readers, friends, teachers, students & all those close ones who deserve to know what you know now.

Weekly Quiz Competition

Question 1
1 / -0

A is the 5th prime number. B is the 7th prime number. What is B - A?

A
6

B
8

C
12

D
2

Solution

A prime number is a whole number greater than 1 whose only factors are 1 and itself.
Question 2
1 / -0

Every number is a _____ and a _____ of itself

A
factor, multiple

B
prime, composite

C
even, odd

D
prime, twin prime

Solution

Factoring is like taking a number apart. It means to express a number as the product of its factors. Factors are either composite numbers or prime numbers (except that 0 and 1 are neither prime nor composite)
Question 3
1 / -0

How many prime numbers are there between 1 and 50?

A
18

B
12

C
15

D
20

Solution

The prime numbers between 1 and 50 are: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37, 41, 43 and 47.
Question 4
1 / -0

Give an example for twin primes.

A
5,11

B
3,5

C
11,17

D
3,7

Solution

A twin prime is a prime number that is either 2 less or 2 more than another prime number.
Question 5
1 / -0

Which is the number that is neither prime nor composite?

A
0

B
1

C
2

D
5

Solution

A composite number has more than two factors. The number 1 is neither prime nor composite. The prime numbers between 2 and 31 are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29 and 31 since each of these numbers has only two factors, itself and 1
Question 6
1 / -0

What do you get when you multiply two factors?

A
Sum

B
Product

C
Difference

D
Quotient

Solution

When two factors are multiplied we get a product.
Question 7
1 / -0

Which of the following is an example of an even number?

A
10351

B
20989

C
69007

D
973572

Solution

Of the given options 973572 is an even number.
Question 8
1 / -0

What are the numbers which are multiples of 2 called?

A
Odd numbers

B
Even numbers

C
Prime numbers

D
Composite numbers

Solution

Even numbers always end with a digit of 0, 2, 4, 6 or 8. 2, 4, 6, 8, 10, 12, 14, 16, 18, 20, 22, 24, 26, 28, 30 are even numbers.
Question 9
1 / -0

Which of these numbers is a factor of every number ?

A
0

B
1

C
2

D
4

Solution

A factor of a number divides the number. For example, 2, 3, and 4 are all factors of 12.
Question 10
1 / -0

Which of the following is the prime factorisation of 140?

A
2 × 2 × 7

B
2 × 2 × 5

C
2 × 2 × 5 × 7

D
2 × 2 × 5 × 7 × 3

Solution

the factors are prime number. so we did prime factorization of 540 using the upside-down division method that was all about prime factorization

User

Question Analysis

Correct -
Wrong -
Skipped -

My Perfomance

Score
-
out of -
Rank
-
out of -

Re-Attempt Weekly Quiz Competition

Playing with Numbers Test - 3

Result

Playing with Numbers Test - 3

Score

-

Rank

-

SHARING IS CARING

Question 1

6

8

12

2

Solution

Question 2

factor, multiple

prime, composite

even, odd

prime, twin prime

Solution

Question 3

18

12

15

20

Solution

Question 4

5,11

3,5

11,17

3,7

Solution

Question 5

0

1

2

5

Solution

Question 6

Sum

Product

Difference

Quotient

Solution

Question 7

10351

20989

69007

973572

Solution

Question 8

Odd numbers

Even numbers

Prime numbers

Composite numbers

Solution

Question 9

0

1

2

4

Solution

Question 10

2 × 2 × 7

2 × 2 × 5

2 × 2 × 5 × 7

2 × 2 × 5 × 7 × 3

Solution

User

Question Analysis

My Perfomance

Score

-

Rank

-

Results Announcement on: coming Monday

Stay Tuned: We’ll update you on your result via email or SMS.