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28, 56, 84 and so on.
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∙ 12y ago
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What three numbers multiply to get 28?
As a product of its prime factors: 2*2*7 = 28
What two factors multiply to equal 196 and add up to equal -28?
-14 and -14 Add them together to get -28 Multiply them to get 196
How many common factors do 28 and 32 have?
Factors are numbers you can multiply together to get another number. 28: 1, 2, 4, 7, 14, 28 32: 1, 2, 4, 8, 16, 32 28 and 32 have 3 common factors: 1, 2 and 4.
Common factors of 42 and 28?
Factors are numbers you can multiply together to get another number. Common factors are the factors two or more numbers have in common. 28: 1, 2, 4, 7, 14, 28 42: 1, 2, 3, 6, 7, 14, 21, 42 The common factors of 28 and 42 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 factors of 28 add up to 9?
37
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 LCM of 28 and 5?
To find the LCM of 28 and 5 you start by splitting these into their prime factors: 28 = 2x2x7 5 = 5 The next step would be to identify any common factors. In this case, there are none, and so we take all the factors, and multiply them together to find the LCM: 2x2x7x5 = 140 Thus the LCM of 28 and 5 is 140.
What is the least common multiple of 28 and 42 found using prime factorization?
First you need to find the prime factors of 28 and 42. 28= 7x22 42= 7x3x2 Then you multiply 7x3x22, the product of which is 84, which is your answer.
What is the HCF of 8 and 28?
To find the HCF of two numbers, you need to express them in their prime factors: 8 = 2x2x2 28 = 2x2x7 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 Thus 4 is the hcf of 8 and 28.
What is the greatest common factor of 28 and32?
Prime factor each number. Circle all the prime common factors then, multiply them 28=2x2x7 32=2x2x2x2x2 GCF=2x2=4
All factors of 28?
2,2,7 are the factors of 28.
