Product of two numbers is 1620. HCF of those numbers is 18. Then the LCM is?
60
80
75
90
The sum of first five multiples of 10 is
100
150
250
300
Find the prime number ?
121
71
221
343
Find the smallest number which is divisible by 5, 10 and 15
20
30
45
Product of two numbers is 6912. LCM of those numbers is 288. Then the HCF of those numbers?
24
18
36
Find the number which is divisible by 9
981
786
493
The number which is neither prime nor composite is
1
0
2
What is the factor of 5616?
452
624
721
The smallest prime number is ______________
None of these