Any multiple of 20 includes the prime factors of 20.
The prime factors of 20 are 2, 2 and 5 The prime factors of 35 are 5 and 7 Therefore the greatest (and, other than 1, the only) common divisor of 20 and 35 is 5.
The prime factors of 20 are: 2 and 5.
The prime factors of 20 are 2, 2, and 5.
The prime factors of 20 are 2 and 5. The prime factors of 30 are 2, 3 and 5.
There are no common factors between these values since 11 is prime and 20 is composite. Then, there are no common prime factors between these values.
Any multiple of 20 includes the prime factors of 20.
The GCF of 12 and 20 is 4.The factors of 12 are 1, 2, 3, 4, 6, and 12. The factors of 20 are 1, 2, 4, 5, 10, and 20.The factors they have in common are 1, 2, and 4. Therefore, 4 is the greatest common factor.The greatest common factor can also be determined from the prime factors by multiplying the common prime factors together.The prime factors of 12 are 2, 2, and 3.The prime factors of 20 are 2, 2, and 5.The common prime factors are 2 and 2, so the greatest common factor is 2 x 2 = 4.The greatest common factor of 12 and 20 is 4
The greatest common prime factor of 10 and 20 is 5.
The factors of 16 are 1, 2, 4, 8, and 16. The factors of 20 are 1, 2, 4, 5, 10, and 20. The largest of the factors they have in common is 4, so 4 is the greatest common factor. Using prime factorization: The prime factors of 16 are 2, 2, 2, and 2. The prime factors of 20 are 2, 2, and 5. The prime factors in common are 2 and 2, so the greatest common factor is 2 x 2 = 4.
One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors of 55 are 1, 5, 11, and 55. The common factors are 1 and 5. Therefore, the greatest common factor is 5. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 20 are 2, 2, and 5. The prime factors of 55 are 5 and 11. The prime factors in common are a single 5, so the greatest common factor is 5.
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.
The easiest way to do this is to split the numbers down into their prime factors: 14 = 2x7 20 = 2x2x5 The next step is to spot any common prime factors. In this case both numbers have a 2 as a prime factor. Therefore, the HCF of 14 and 20 is 2.
To work this out, you need to write both numbers as their prime factors: 20 = 2x2x5 12 = 2x2x3 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 4. Therefore 4 is the HCF of 20 and 12.
20 = 2 x 2 x 5 30 = 2 x 3 x 5 Common prime factors: 2 and 5.
The GCF of 20, 55, and 85 is 5 One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 20 are 1, 2, 4, 5, 10, and 20. The factors of 55 are 1, 5, 11, and 55. The factors of 85 are 1, 5, 17, and 85. The common factors are 1 and 5. Therefore, the greatest common factor is 5. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 20 are 2, 2, and 5. The prime factors of 55 are 5 and 11. The prime factors of 85 are 5 and 17. The prime factors in common are a single 5, so the greatest common factor is 5.
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.