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What do you call a number that has one factor?
One.
What is the least common factor of 8 20 and 40?
The least common factor of any set of integers is 1.
What do you call an number that has only one factor?
prime number
What do you call a number with only one prime factor?
A power.
What number is a common factor of every set of numbers?
Answer is one.
What Lowest common factor of two and five?
The least common factor of any set of integers is one.
What is the least common factor of 18 30 42?
The least common factor of any set of integers is 1.
Is the is the least common factor of a set of numbers always equal to one of the numbers in the set?
The least common factor of any two or more positive integers is always 1.
Why is one a common factor in every set of numbers?
Because everything can be divided by one.
What is the least common factor of 8 12 21?
The least common factor of any set of numbers is 1.By definition, 1 is a factor of all numbers. And you cannot have a factor that is less than one so it is the least.In this case 1, is also the greatest common factor since the numbers have no other common factors. We call these numbers relatively prime.
Is a prime factor the same as a proper factor?
No, a prime factor is a single factor that is a prime number. A proper factor is a member of the set of factors that doesn't include one and the number itself.
What are the set of even numbers which are factors of 4?
2 is a factor of 4, and 4 is a factor of 4. One (1) is also a factor, but it's not even.
