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- 1. Multiple Choice
1 is a/an
Prime number
Composite number
Universal factor
none of the above
- 2. Multiple Choice
The numbers having more than two factors are called
Prime numbers
Composite numbers
Even numbers
Odd numbers
- 3. Multiple Choice
Which of following number is multiple of 8
2
4
10
16
- 4. Multiple Choice
The HCF of two co prime numbers is 1
False
True
- 5. Multiple Choice
In which of the following expressions, prime factorisation has been not done?
24 = 2 × 2 × 2 × 3
56 = 7 × 2 × 2 × 2
70 = 2 × 5 × 7
54 = 2 × 3 × 9
- 6. Multiple Choice
Which of the following numbers is divisible by 11?
165
111
222
100
- 7. Multiple Choice
The smallest digit in the '*' of 67*24 so that the number formed is divisible by 3 :
0
1
2
3
- 8. Multiple Choice
Which of the following is the smallest prime number:
1
2
3
4
- 9. Multiple Choice
How many prime numbers lie between 1 and 10?
3
4
5
2
- 10. Multiple ChoiceThe smallest composite number is ____1234
- 11. Multiple Choice
_____ is a common factor of 20 and 24.
6
4
8
- 12. Multiple Choice
The HCF of two consecutive even numbers is _____
1
2
3
- 13. Multiple Choice
Prime factorisation of 48
2 x 2 x 2 x 2 x 3
2 x 2 x 3 x 3
2 x 2 x 3 x 5
2 x 3 x 3 x 5
- 14. Multiple Choice
All the factors of 12 are
1,2,4,12
1,2,3,4,6,12
1,3,7,12
1,2,3,6,12
- 15. Multiple Choice
Which number is divisible by 6
130
912
10750
31100
- 16. Multiple Choice
Which are the co-prime numbers
18 & 9
12 & 14
12 & 17
21 & 27
- 17. Multiple Choice
Find the H.C.F of 96 and 150
2
6
3
5
- 18. Multiple Choice
Which of the following pairs is not co-prime ?
11 , 12
31 , 33
1 , 3
8 , 10
- 19. Multiple Choice
Is 565245 divisible by 9 ?
Yes
No
- 20. Multiple ChoiceWhich of the following number is divisible by 11?53064530635306753061
- Answer choicesTagsAnswer choicesTags