a proper factor is a factor.
The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.The proper factors are 1, 2, 3, 6, 7, 14, and 21or 2, 3, 6, 7, 14, and 21 if the number 1 is excluded as it is in some definitions of proper factor.
Since 7 is a factor of 28, it is automatically the GCF of 7 and 28The Greatest Common Factor (GCF) of 28 and 7 is 7.
I suppose you could use improper factor, but the for any given integer, the factors that are not proper are known as trivial.
35 is a multiple of 7 7 and 1 are a factor pair of 7. 3 and 5 are a factor pair of 15
The proper factors of 35 are 5 and 7
5 and 7
The proper factor of 21 is 1, 3 and 7
Prime numbers, like 7, have no proper factors. The only factors are 1 and 7.
Aside from itself and 1, the highest factor of 14 is 7.
The proper factors of 147 are 3, 7, 21, and 49
No, 294 is not a proper factor of 147. Proper factors are smaller than the number of which they are a factor. The proper factors of 147 are 3, 7, 21, 49, and perhaps 1, depending on the definition you are using.
1, 5, 7 and 35 are the factors of 35. The proper factors are 5 and 7.
The only proper factors of 77 are 7 and 11. 11 isn't a factor of 259 but 7 is, so the answer is 7.
a proper factor is a factor.
The only common factor is 1. There is no proper common factor.
No. Prime numbers don't have proper factors.