To find the HCF you first need to break the numbers down into their prime factors. In this case we have:
30 = 2x3x5
45 = 3x3x5
The next step is to identify any common factors. In this case both numbers have 3 and 5 as prime factors. To find the HCF, multiply these together: 3x5 = 15.
To get the LCM, multiply the numbers together then divide by the HCF: 30x45/15 = 90.
What is the lcm of 20 and 45
3 and 30
3 and 30.
3 and 30
3 and 30
225 and 15, respectively.
The HCF is 1, the LCM is 720
What is the lcm of 20 and 45
The LCM is 360.
The LCM is 900.
LCM(30, 45, 60) = 180
The LCM is 360.
The LCM is 360.
The LCM is 720.
The LCM is 90.
The LCM of 22, 30 and 45 is 990.
360 is the LCM of 8, 30 and 45