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2 x 2 x 3 x 5 = 60
2 x 5 x 11 = 110
2 x 5 = 10, the GCF
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What is the HCF of 52 and 96?
To find the HCF of two numbers you first need to write them as the product of their prime factors: 52 = 2x2x13 96 = 2x2x2x2x2x3 The next step is to identify any common prime factors. In this case, both numbers have two 2s as prime factors. Multiply these and you get: 2x2 = 4 Thus the HCF of 52 and 96 is 4.
How is 4 the HCF of 28 and 60?
To figure out the HCF of 28 and 60, split them up into their prime factors: 28 = 2x2x7 60 = 2x2x3x5 The next step is to identify any common prime factors. In this case, both numbers have two 2s as prime factors. Multiply these together and you get: 2x2 = 4 Therefore 4 is the HCF of 28 and 60.
HCF of 70 by prime factorization method?
As a product of its prime factors: 2*5*7 = 70 Note that at least two or more numbers are needed to find their HCF
What is the HCF of 9and 12?
First, write both numbers as the product of their prime factors: 9 = 3x3 12 = 2x2x3 The next step is to identify any common prime factors. In this case, both numbers have 3 as a prime factor. Therefore, the HCF of 9 and 12 is 3.
What is the HCF of 11 88 and 44?
To find the hcf of three numbers you first need to write them as the product of their prime factors: 11 = 11 88 = 2x2x2x11 44 = 2x2x11 The next step is to identify any common prime factors. In this case, all three numbers have a prime factor of 11. Therefore the hcf of 11, 88 and 44 is 11.
What are the prime factor of HCF?
Each HCF has its own set of prime factors.
What is the LCM of 20 and 110?
To find the LCM of 110 and 20, you first need to break them up into their prime factors: 110 = 2x5x11 20 = 2x2x5 The next step is to identify the HCF. In this case the HCF will be 2x5 = 10. To find the LCM you multiply the numbers together and divide by the HCF: 110x20/10 = 220. Thus the LCM of 110 and 20 is 220.
Is the HCF of 140 and 210 2?
No. The prime factors of 140 are 2,2,5 and 7 The prime factors of 210 are 2,3,5 and 7 The common prime factors are 2,5 and 7 Thus the HCF is 2x5x7, or 70.
What numbers have an HCF of 1?
An HCF is the product of any common prime factors of two numbers. If two numbers have no common prime factors, then the HCF will be 1. For example, 10 and 21. The prime factors are 2x5 and 3x7. There is nothing in common, and so the HCF of 10 and 21 is 1. Two consecutive numbers will always have the HCF of 1.
What are the highest common factors of 110 and 250?
The GCF is 10.
What is the HCF of 21 and 49?
The first step when finding an HCF is to break the numbers down into their prime factors. In this case we get: 21 = 3x7 49 = 7x7 The next step is to identify any common prime factors. In this case both numbers have a 7 as a prime factor. There are no more common prime factors, and thus the HCF of 21 and 49 is 7.
What is the HCF of 3 and 2?
Both 3 and 2 are prime. This means they cannot be broken down further into prime factors. As they are different, this means they will not have any common prime factors. Therefore the HCF of 3 and 2 is 1. The HCF of any two different prime numbers will always be 1.
How do you work out the hcf of 210 and 385?
Prime factors of 210 are: 2, 3, 5 and 7 Prime factors of 385 are: 5,7 and 11 Common factors are: 5 and 7 and so 5*7 = 35 which is the hcf
What is the HCF of 20 16?
To find the hcf, first split the numbers into their prime factors: 20 = 2x2x5 16 = 2x2x2x2 The next step is to identify any common prime factors. In this case both numbers have 2 and 2 as prime factors. Multiply these together and you get 4. Thus the hcf of 20 and 16 is 4.
What is the HCF of 40 and 48?
TO work out the HCF you need to split the numbers into their prime factors. In this case you have: 40 = 2x2x2x5 48 = 2x2x2x2x3 The next step is to identify any common prime factors. Both numbers have three 2s as prime factors. Multiply these together and you get: 2x2x2 = 8 Thus the HCF of 40 and 48 is 8.
What is the HCF of 32 and 98?
To work this out, you have to split the numbers into their prime factors: 32 = 2x2x2x2x2 98 = 2x7x7 The next step is to spot any common prime factors. In this case both numbers have a 2 as a prime factors. Thus the HCF of 32 and 98 is 2.
What are HCF of 20 and 30?
To find the HCF of 20 and 30, break them down into their prime factors: 20 = 2x2x5 30 = 2x3x5 The next step is to identify any common prime factors. In this case both numbers have a 2 and a 5 as prime factors. Multiply these together and you get: 2x5 = 10 Therefore the HCF of 20 and 30 is 10.
