If the product of two numbers is 8064 and their HCF is 12, then their LCM=
564
672
650
635
What number should replace the star in 3*35 so that it may become divisible by 3
1
2
3
4
If a and b are coprime numbers, their HCF=
ab
a+b
If a and b are coprime numbers, their LCM=
What is the relation between H.C.F and L.C.M of two natural numbers.
product of two given numbers = product of their L.C.M and H.C.F
sum of two given numbers = product of their their L.C.M and H.C.F
Difference of two given numbers = product of their their L.C.M and H.C.F
None of these
HCF of 18 and 45 is
5
9
Which of the following is a twin prime?
(7,11)
(2,3)
(3,11)
(11,13)
A number is divisible by 5 if
sum of digits is divisible by 5
If the last digit of the number is 5
If the last digit of the number is 0
Either (2) or (3)
Two numbers are 15 and 45. Their HCF is 5. Find their LCM.
110
135
140
150
Which of the following number is divisible by 9?
631
729
949
223
