Any positive integer, k, is a factor because it will divide larger integers of the form 2k, 3k etc.
147 divides 294, for example and so is a factor of 294.
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Because 147 = 7*21
The greatest common factor of 105 and 147 is 21
The greatest common factor of 147 and 192 is: 3
The GCF is 21.
The prime factors of 147 are 3, 7 and 7. From those we can create all the other factors ... (3 x 7) and (7 x 7) which are 21 and 49. 1 is a factor of every number, and every number is a factor of itself. So all the factors of 147 are 1, 3, 7, 7, 21, 49 and 147