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Good question. The short answer is "No," but there is some disagreement. Some people include 1, others do not. Part of the trouble comes from some countries that use the term "factor," others that use the term "divisor," and others which use them interchangeably. If I ruled the world, or even the math portion of it, here's what I would decree:
A proper factor of a positive integer N is a factor of N other than 1 or N.
For example, 2 and 3 are positive proper factors of 6, but 1 and 6 are not.
Compare with the term proper divisor, which means a factor of N other than N (but including 1).
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∙ 10y ago
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How many mathematical factors are there from 1 to 25?
There are 25 factors from 1 to 25. Each of the numbers can be a factor.
How many factors in 21?
four factors: 1, 3, 7, 21
How many factors are in 2008 including 1 and itself?
Eight factors.
How many disctinct factors does 1 have?
Just 1.
How many factors does the number 58 have and what are they?
Four factors.
How many factors does 73 have?
It has two factors: 1 and 73.
How many factors does 621 have?
It has 8 factors, including 1 and itself.
How many factors does 28 has?
It has 6 factors including 1 and itself.
How many mathematical factors are there from 1 to 25?
There are 25 factors from 1 to 25. Each of the numbers can be a factor.
How many factors does 6 have?
1, 2, 3, 6. Four factors.
How many factors does 185 have?
Four factors: 1 5 37 185.
How many factors does 155 have?
It has four factors: 1 5 31 155.
How many factors does 121 have in all?
Three factors: 1 11 121.
How many factors in 21?
four factors: 1, 3, 7, 21
How many X-factors has 1 Direction won?
1
How many disctinct factors does 1 have?
Just 1.
How many factors does the number 58 have and what are they?
Four factors.
