Which of the following number is divisible by 3?
631
730
949
123
Number of factors of a prime number is?
1
2
3
4
Two numbers are 15 and 45. Their HCF is 5. Find their LCM.
110
135
140
150
Prime factors of the smallest 3 digit number is
2 x 5
22 x 52
23 x 52
22 x 53
LCM of 8 and 15
30
60
120
130
Which of the following is a twin prime?
(7,11)
(2,3)
(3,11)
(11,13)
The factors of 15 are
1,3,5
3,5
3,5,15
1,3,5,15
If the product of two numbers is 8064 and their HCF is 12, then their LCM=
564
672
650
635
____ is the factor of every number?
0
None of these
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
