NEW
Font size
WorksheetsPlaying with numbers
Total questions: 20
Worksheet time: 20mins
1 is a/an
Prime number
Composite number
Universal factor
none of the above
The numbers having more than two factors are called
Prime numbers
Composite numbers
Even numbers
Odd numbers
Which of following number is multiple of 8
2
4
10
16
The HCF of two co prime numbers is 1
False
True
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
Which of the following numbers is divisible by 11?
165
111
222
100
The smallest digit in the '*' of 67*24 so that the number formed is divisible by 3 :
0
1
2
3
Which of the following is the smallest prime number:
1
2
3
4
How many prime numbers lie between 1 and 10?
3
4
5
2
_____ is a common factor of 20 and 24.
6
4
8
The HCF of two consecutive even numbers is _____
1
2
3
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
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
Which number is divisible by 6
130
912
10750
31100
Which are the co-prime numbers
18 & 9
12 & 14
12 & 17
21 & 27
Find the H.C.F of 96 and 150
2
6
3
5
Which of the following pairs is not co-prime ?
11 , 12
31 , 33
1 , 3
8 , 10
Is 565245 divisible by 9 ?
Yes
No
