They are factors of 28 as 28 = 4 x 7 which is also the lowest common multiple of both numbers.
Chat with our AI personalities
1 + 2 + 4 = 7
The common factors are: 1, 2, 4, 7, 14, 28
The word "greatest" is a superlative. What that means is that there can only be one gcf. So there are not greatest common factors of 4 and 7, there is a GCF, which is 28.
Because 7 is a prime number, its only factors are 1 and 7. 7 is not a factor of 4 or 8, so 1 must be the only factor common to all four numbers. To work it out in detail: Factors of 4: 1 2 4 Factors of 7: 1 7 Factors of 8: 1 2 4 8 Factors of 14: 1 2 7 14 The GCF of 4, 7, 8, and 14 is 1
To find common factors, find all the factors of each number. Then a common factor is any number that appears in both lists. Factors of 56 1, 2, 4, 7, 8, 14, 28, 56 Factors of 35 1, 5, 7, 35 Therefore the common factors of 56 and 35 are 1 and 7.