0
Their only prime factor is 4.
Wiki User
∙ 14y ago
Add your answer:
Earn +20 pts
What prime factors do 28 and 18 have in common?
Only one which is 2
What are the and prime factors of 28?
28 is a composite number because it has factors other than 1 and itself. It is not a prime number.The 6 factors of 28 are 1, 2, 4, 7, 14, and 28.1 + 2 + 4 + 7 + 14,The factor pairs of 28 are 1 x 28, 2 x 14, and 4 x 7.The proper factors of 28 are 1, 2, 4, 7, and 14 or,if the definition you are using excludes 1, they are 2, 4, 7, and 14.The prime factors of 28 is 2 and 7.Note: There is repetition of these factors, so if the prime factors are being listed instead of the prime factorization, usually only the distinct prime factors are listed.Prime numbers mean only 1 and it self are its factors.The distinct prime factors (listing each prime factor only once) of 28 are 2 and 7.The prime factorization of 28 is 2 x 2 x 7 or, in index form (in other words, using exponents), 22 x 7.NOTE: 28 is also a perfect number because the sum of its proper factors (the definition including 1) equals itself: 1 + 2 + 4 + 7 + 14 = 28.NOTE: There cannot be common factors, a greatest common factor, or a least common multiple because "common" refers to factors or multiples that two or more numbers have in common.
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.
What is the prime factorization of 46 and 28?
As a product of its prime factors: 2*23 = 46 As a product of its prime factors: 2*2*7 = 28
What are the first three prime numbers of 28?
To find the prime factors of 28 start with any factor pair of 28 and keep factoring the composite factors until all the factors are prime. 28 2 x 14 2 x 2 x 7 The three prime factors of 28 are 2, 2, 7.
What is the greatest common factors of 12 and 28?
The GCF of 12 and 28 is 4.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 12 are 1, 2, 3, 4, 6, and 12.The factors of 28 are 1, 2, 4, 7, 14, and 28.The common factors are 1, 2, and 4. Therefore, the greatest common factor is 4.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 12 are 2, 2, and 3.The prime factors of 28 are 2, 2, and 7.The prime factors in common are 2 and 2, so the greatest common factor is 2 x 2 = 4.Factors of 12: 1 2 3 4 6 12Factors of 28: 1 2 4 7 14 28It is 44
What is the greatest common factor 28 and 75 using prime factorization?
prime factors of 28 are: 2, 2, 7.prime factors of 75 are: 3, 5, 5.As 28 and 75 have no common prime factors, their greatest common factor is 1.
What is are all the common factors of 28 and 42?
The prime factors of 28 are 2,2 and 7 The prime factors of 42 are 2,3 and 7 Thus the common factors are 1,2,7 and 14.
What is the LCM of 28 and 21?
To determine the least common multiple of two numbers, determine the prime factors of both number. Then, determine the prime factors they have in common. Multiply all their prime factors together (in other words, multiply both numbers together) and divide by the prime factors they have in common (in other words, their greatest common factor). The prime factors of 21 are 3 and 7. The prime factors of 28 are 2, 2, and 7. The prime factors in common are a single 7. Therefore, the lowest common multiple is 21 x 28 ÷ 7 = 84
What is the sum of the distinct prime factors OF 12?
28.
What are the common prime factors of 28 and 42?
2 and 7
What is the greatest common factor of 24 and 28?
The GCF of 24 and 28 is 4.One way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 24 are 1, 2, 3, 4, 6, 8, 12, and 24.The factors of 28 are 1, 2, 4, 7, 14, and 28.The common factors are 1, 2, and 4.Therefore, the greatest common factor is 4.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 24 are 2, 2, 2, and 3.The prime factors of 28 are 2, 2, and 7.The prime factors in common are 2 and 2, so the greatest common factor is 2 x 2 =4.The Greatest Common Factor (GCF) is: 4The greatest common factor of 24 and 28 is 4.
What is the greatest common factor of 28 and 36?
The GCF of 28 and 36 is 4. One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 28 are 1, 2, 4, 7, 14, and 28. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The common factors are 1, 2, and 4. Therefore, the greatest common factor is 4. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 28 are 2, 2, and 7. The prime factors of 36 are 2, 2, 3, and 3. The prime factors in common are 2 and 2, so the greatest common factor is 2 x 2 = 4.
What is the greatest common factor of 12 28 and 40?
The greatest common factor of 12, 28, and 40 is 4 To find the greatest common factor of numbers, you first need to split these numbers into their prime factors: 12 = 2x2x3 28 = 2x2x7 40 = 2x2x2x2x5 You then need to find which prime factors are shared between the numbers. In this case, each of the numbers uses two 2s, but no other numbers are common between them. So to find the GCF we simply multiply two 2s: 2x2=4 Thus the GCF of 12, 28 and 40 is 4.
What prime factors do 28 and 18 have in common?
Only one which is 2
What is the greatest common factor of 14 22 and 28?
Answer: 2 One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 14 are 1, 2, 7, and 14. The factors of 22 are 1, 2, 11, and 22. The factors of 28 are 1, 2, 4, 7, 14, and 28. The common factors are 1 and 2. Therefore, the greatest common factor is 2. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 14 are 2 and 7. The prime factors of 22 are 2 and 11. The prime factors of 28 are 2, 2, and 7. The prime factors in common are a single 2, so the greatest common factor is 2.
Find the common factors of 12 and 28?
The common factors are: 1, 2, 4
