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The HCF is the Highest Common Factor.
Working it out:
1. Choose two numbers and list all the factors of each number in a straght line like this:
20: 1, 2, 4, 5, 10, 20
15: 1, 3, 5, 15
2. find the highest number that appears in both lines. In this case the answer is 5.
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What button on a calculator does for HCF?
no button you gotta work it out yaself
What is the HCF of 680?
To have a HCF, you need at least 2 numbers. There is no HCF in just 1 number.
What is the LCM of 6and 34?
To work this out, you first have to give the numbers as their prime factors: 6 = 2x3 34 = 2x17 The next step is to identify the HCF. In this case, the HCF is 2. Finally, you multiply the numbers together and divide by the HCF: 6x34/2 = 102
How do you work out HCF of 20 and 7?
20 and 7 have no common factors other than 1.
What is the hcf of 42 and 12?
the HCF is 6
Hcf of 25 and 70?
The HCF is 5.
What is the HCF of 1854 and 31?
The HCF is 1
What if the HCF of 210 and 112?
HCF = 14
Hcf of 16 and 33?
The HCF of 16 & 33 is... 1
What is the hcf of 196?
i really need help on maths home work can you help me thank you the maths is hcf of prime factors of 196 60 and 28 primes factors 735 and 639 prim factors
Does the HCF of any two no is always a factor of their LCM?
If two numbers are expressed as ab and cb this is easier to work out. Assume that a and c have no common prime factors. Thus, the HCF of the two numbers will be b. The LCM is the two numbers multiplied by each other, divided by the HCF. So the LCM will be abc. b is a factor of abc, and so the HCF will always be a factor of their LCM.
What is the HCF of 4 and 9?
The HCF is 1.
