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How do you work out which 2 numbers have an lcm of 30 and an HCF of 3?
Wiki User
∙ 8y ago
In these types of problems, the numbers can also be the answer. 3 and 30 have a GCF of 3 and an LCM of 30. Since the product of the GCF and LCM of two numbers is the same as the product of the numbers, you could also use another factor pair of 90, like 6 and 15.
Wiki User
∙ 8y ago
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What are the lcm of 30 and 75?
To find the LCM of two numbers, you first split them into their prime factors: 30 = 2x3x5 75 = 3x5x5 Next you need to work out the HCF. Here, the HCF will be 3x5 = 15. Finally, you multiply the numbers together and divide by the HCF. 30x75/15 = 150. Therefore the LCM of 30 and 75 is 150.
Two numbers have an LCM of 30 and an HCF of 3 What are they?
3 and 30
Which two numbers have an LCM of 30 and an HCF of 3?
3 and 30
What 2 numbers have the LCM of 30 and the HCF of 3?
3 and 30.
What two numbers have a lcm of 30 and a HCF of 3?
3 and 30
What are the two numbers with a LCM of 30 and a HCF of 3?
3 and 30
What two numbers have a lcm of 30 and a HCF of 6?
Use GCF instead of HCF. 6 and 30 would be those numbers...
Which 2 numbers have a HCF of 2 and a LCM of 30?
6 and 10 2x3=6 2x5=10 HCF=2 LCM=30
What are three pairs of numbers that have a LCM of 30 and a HCF of 1?
30 & 1. 15 & 2. 10 & 3.
What two numbers have the LCM of 30 and a HCF of 1?
2 and 15 3 and 10 5 and 6
What is HCF and LCM of 30 and 45?
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 hcf and LCM of 14 and 30?
hcf(14, 30) = 2 lcm(14, 30) = 210 14 = 2 x 7 30 = 2 x 3 x 5 hcf = 2 lcm = 2 x 3 x 5 x 7 = 210
