Three whole number have their LCM as 180 and their HCF equal to 3. Two of the numbers are 45 and 60. Find the third number.
4 answers
The LCM of 132,330 and a certain number is 1980 and their HCF is 66. Find the value of the number.
45 = 3*3*5
60 = 2*2*3*5
The LCM of those two alone would be 2*2*3*3*5 = 180
since the 3rd number also has a common factor of 3,
the third number could be 3
The 3rd number could be more than the above choice,
e.g. it could have been 6 , 15, 9, 12, or 18
Can you think of any others?
What would be your criteria ?
btw, we don't respond via email, only on this page.
60 = 2*2*3*5
The LCM of those two alone would be 2*2*3*3*5 = 180
since the 3rd number also has a common factor of 3,
the third number could be 3
The 3rd number could be more than the above choice,
e.g. it could have been 6 , 15, 9, 12, or 18
Can you think of any others?
What would be your criteria ?
btw, we don't respond via email, only on this page.
The HCF of 108,189 and a certain number is 27 and their LCM is 3780. Find the value of the third number.
The HCF and the LCM of 108,189 and a third number is 27 and 3780 respectively. The third number can be
1 answer