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- 1. Multiple Choice
Which of the following is smallest prime number:
1
2
3
4
- 2. Multiple Choice
The only prime number which is also even
1
2
3
4
- 3. Multiple Choice
If a number is divisible by 2 and 5 both then is divisible by
2
5
7
10
- 4. Multiple Choice
Which of the following number is divisible by 3
121
123
124
122
- 5. Multiple Choice
A number is divisible by 4 if its
last digit is 4
last digit is 0
last two digits are divisible by 4
last digit is 8
- 6. Multiple Choice
The HCF of two co prime numbers is 1
True
False
- 7. Multiple Choice
The numbers having more than two factors are called
Prime numbers
Composite numbers
Even numbers
Odd numbers
- 8. Multiple Choice
Which number is neither prime nor composite
1
0
2
3
- 9. 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 × 8
- 10. Multiple Choice
Which of the following numbers is divisible by 11?
165
111
222
100
- 11. Multiple Choice
Divisibility by 2,5,10 can be checked by
sum of digits
last digit
last two digits
last three digits
- 12. Multiple Choice
The HCF of two consecutive numbers is always
1
2
0
None of the above
- 13. Multiple Choice
Identify whether the given statement is 'TRUE' or 'FALSE'
All prime numbers are odd
True
False
- 14. Multiple Choice
How many prime numbers lie between 1 and 10?
3
4
5
2
- 15. Multiple Choice
In which of the following prime factorisation has been done:
56 = 1x2x2x2x7
56 = 2x2x2x7
56 = 2x4x7
56 = 2x2x14
- 16. Multiple Choice
If a number is divisible by 5, then which of the following can be its one's digit?
2
3
4
5
- 17. Multiple Choice
_____ is the smallest factor of 12?
12
3
2
1
- 18. Multiple Choice
The first 2 common multiples of 3 and 4 are ____ and ___.
12 and 20
12 and 16
12 and 18
12 and 24
- 19. Multiple Choice
If a number has 0 in ones place, then it is divisible by _____.
5
10
both ( 5 and 10)
None of the Above
- 20. Multiple Choice
1 is a ______ of every number.
factor
multiple
coprime
prime
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