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Is number 22a proper factor?
It depends on the number being factored. 22 is a proper factor of 44. 22 is a factor, but not a proper factor, of 22.
Does every number have a proper factor that can be multiplied to get another proper factor?
No, prime numbers do not have proper factors.
What are the proper factors of the number one?
In the context of primes and factoriation, every counting number is a factor.
What is the greatest common factor of 3 4 and 6?
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.
Why does every number have 1 as a proper factor?
Every number has one as a factor because one can divide into any number with no remainder. Every number does not have one as a proper factor because the set of proper factors does not contain one and the number itself.
