Advertisements
Advertisements
Question
If a and b are co-primes, then their LCM is
Options
1
`a/b`
ab
none of these
Solution
ab
If a and b are co-primes then their LCM will be ab.
For example, 4 and 9 are co-primes.
L.C.M. of 4 and 9 is 4×9.
APPEARS IN
RELATED QUESTIONS
Find the LCM:
12, 15
Find the LCM:
18, 32
Find the HCF and LCM of the numbers given below. Verify that their product is equal to the product of the given numbers.
32, 37
Find the HCF and LCM:
21, 49, 84
Find the LCM:
15, 25, 30
Find the smallest number which when divided by 8, 9, 10, 15, or 20 gives a remainder of 5 every time.
The HCF of two number is 15 and their product is 1650. Find their LCM.
Find the least number which when divided by 12, 16, 24 and 36 leaves a remainder 7 in each case.
The traffic lights at three different road junctions change after every 40 seconds, 60 seconds and 72 seconds respectively. If they changed simultaneously together at 8 a.m at the junctions, at what time will they simultaneously change together again?
Wilson, Mathan and Guna can complete one round of a circular track in 10, 15 and 20 minutes respectively. If they start together at 7 a.m from the starting point, at what time will they meet together again at the starting point?
