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The factors of 21 are: 1, 3, 7, 21.
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What are the proper factors of the number 126?
The proper factors of a number are all the factors less than itself, so the proper factors of 126 are 1, 2, 3, 6, 7, 9, 14, 18, 21, 42, and 63. In some cases, the number 1 is excluded from the list of proper factors, too.
What is the proper factors of 21?
The proper factor of 21 is 1, 3 and 7
Why is the set of factors of a number not the same as the proper factors of that number?
The proper factors of a number do not include one and the number itself.
What are proper factors of a certain number?
"Proper factors" are all of a number's factors except one and the number itself.
Is 294 a proper factor of 147?
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.
What are the proper factors of 21?
1, 3, 7 and 21
What numbers do not include the number itself?
the proper factors are the factors of a number not including the number itself, or 1.
What are the proper factors of 42?
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.
What is the difference between the factors and the proper factors of a number?
The proper factors are the regular factors without one and the number itself.
Does three have proper factors?
No, no prime number has proper factors.
What are the proper factors for the number 1?
One has no proper factors.
Why is the set of factors of a number not the same as the set of proper factors of the number?
The set of factors includes one and the number itself. Proper factors do not include those two.
