If a and b are coprime numbers, their LCM=
ab
1
a+b
The factors of 15 are
1,3,5
3,5
3,5,15
1,3,5,15
Number of factors of a prime number is?
2
3
4
If the last digit of a number is even or 0, then the number is divisible by?
5
6
Two numbers are 15 and 45. Their HCF is 5. Find their LCM.
110
135
140
150
LCM of 11 and 5 is
16
55
None of these
HCF of 18 and 45 is
9
Which of the following is a coprime number?
(5,6)
(2,4)
(3,9)
(4,12)
If the product of two numbers is 8064 and their HCF is 12, then their LCM=
564
672
650
635
LCM of 8 and 15
30
60
120
130
