One has no proper factors.
No.
4 3 and 6 have no proper factor in common. Remember that 1 is a factor of every counting number, but not a proper factor of any of them. Greatest common factor questions do not recognise 1 as a proper factor. When talking of primes neither 1 nor the number itself is regarded as a proper factor.
No.
The proper factors of 99 are: 1, 3, 9, 11, 33. A proper factor is any factor of the number that is not itself.
a proper factor is a factor.
The proper factor of 21 is 1, 3 and 7
The factors of 9 are 1, 3 and 9. The proper factor of 9 is 3.
Traditionally no.
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.
The only common factor is 1. There is no proper common factor.
A factor of a whole number n is any whole number, that when multiplied by another whole number, results in n. For example, 1, 2, 3, and 6 are factors of 6. 1 is a factor, because 1*6 = 6, 2 is a factor, since 2*3= 6, etc. Another way to say this is that a whole number is a factor of n if it divides n evenly.A proper factor of n is any factor that is not 1 or n. Using the example above, the proper factors of 6 are 2 and 3.
Proper factors are the set of all the factors minus 1 and the number you are factoring.