2 and 7
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.
The prime factors of 28 are 2 and 7. The prime factors of 42 are 2, 3, and 7.
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.
Common factors of 42 and 28 are: 1, 2, 7, and 14.
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.
To work this out, you first have to split the numbers down into their prime factors: 42 = 2x3x7 23 = 23 There are no common prime factors. This means that the only common factor of 42 and 23 is 1.
The factors of 28 are: 1, 2, 4, 7, 14, and 28.The prime factors of 28 are: 2 and 7.The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, and 42.The prime factors of 42 are: 2, 3, and 7.Lets find out the factors of 28 and 42 by prime factorization method.for 28 = 2 * 2* 7 .so , 14 ,2 , 4 , 7, 28, 1 are the factors of 28.For 42 = 3*2*7.So. 3, 2, 6,21, 14,7, 42, 1 are the factors of 42.
43 is a prime number so the common factors of 43 and 42 are 1
1, 2, 7, and 14 are common divisors (and common factors) of 28 and 42.
Factors of 28... 1,2,4,7,14,28 Factors of 42... 1,2,3,6,7,14,21,42 GCF = 14
1, 2, 7 and 14 are the common factors of 28 and 42. Since all of the numbers are common factors, we will not be able to select two.
Common factors of 28 and 42 are: 1, 2, 7, and 14.