Common factor of 15 and 12 is:
2
4
3
None of these
The factor of the number shown on the spike abacus is:
8
7
5
9
The smallest even prime number is:
LCM of 4, 6 is:
12
6
24
Find a number which is a multiple of all the numbers from 1 to 10?
5040
1260
720
1440
From the given data the number of prime numbers between 20 and 30 is:
0
The number 24 has________ factors.
2 factors
4 factors
6 factors
8 factors
LCM of 6, 12 and 18 is:
18
36
72
_________ should subtracted from 642 to make it divisible by 8.
1
642
Find the sum of first three multiples of 5.
15
20
30
35
