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Once you divide a number up into prime factors, all of the number's factors are simply all combinations of these prime factors. For example: the prime factors of 20 are 22 x 51. The exponent 1 is normally not written; I include it here for clarity. To get all possible factors, you can use the Prime number 2 zero times, one time, or two times (three options), and the prime number 5 zero times, or one time, resulting in a total of 3 x 2 = 6 different factors:
20 x 50 = 1
21 x 50 = 2
22 x 50 = 4
20 x 51 = 5
21 x 51 = 10
22 x 51 = 20
Note that in general, a number to the power zero is one; in this case, it simply means that this prime number is not used as a factor.
Wiki User
∙ 10y ago
Wiki User
∙ 7y agoAll prime numbers have two distinct factors.
Wiki User
∙ 7y agoA prime number cannot have any factor other than 1 and itself. A composite number must have a factor other than 1 and itself.
Wiki User
∙ 7y agoIf a whole number greater than one can't be split up into smaller factors, then it is a prime number.
Wiki User
∙ 7y agoPrime numbers can be factors.
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What is a common prime factor?
All numbers have factors. Some factors are prime numbers. A prime factor is a factor that is a prime number. A common prime factor is a prime factor that appears on the list of factors of two or more given numbers.
Which are the prime numbers with 1 as the common factor?
All prime numbers have a common factor of 1.
What numbers have only 1 distinct factor?
Prime numbers have one distinct prime factor.
What numbers have only one prime factor?
Prime numbers.
How do you express the prime numbers in factor tree method?
Since prime numbers only have one prime factor (themselves), factor trees are unnecessary.
What number has 3 prime numbers in it but is also a factor?
30 has three prime numbers and is a factor of 60.
What is the difference between a prime number and a prime factor?
Not a lot. They're both prime numbers. A factor that is prime is used to make other numbers.
What is common prime factors?
All numbers have factors. Some numbers have some of the same factors as other numbers. These are common factors. If the factor is a prime number, it is a common prime factor. 3 is a prime number. 3 is a factor of 9. 3 is a factor of 12. 3 is a common prime factor of 9 and 12.
How prime numbers and composite numbers related?
A composite number is the product of two or more prime numbers. A prime number has exactly two factors, 1 and the number itself; a composite number has at least one more factor than the two that a prime number has.
Is the prime factorization the same as the factor string?
Factor strings don't necessarily have to be composed entirely of prime numbers. But the longest factor string, the one that is entirely prime numbers, that's the prime factorization.
What set of numbers has a greatest common factor of 1?
Prime numbers and numbers that are relatively prime.
What is the prime number that is a factor of 10 and 15?
Five is prime and a factor of both numbers.
