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40 and 21 have no common prime factors
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If two is not a common factor of a pair of numbers what other numbers cannot be common factors?
Even numbers.
What numbers have an HCF of 1?
An HCF is the product of any common prime factors of two numbers. If two numbers have no common prime factors, then the HCF will be 1. For example, 10 and 21. The prime factors are 2x5 and 3x7. There is nothing in common, and so the HCF of 10 and 21 is 1. Two consecutive numbers will always have the HCF of 1.
Are 6 and 8 coprime numbers?
No. If two numbers are coprime, they must have no common factors.
What is the least common factor of 3510?
There cannot be a greatest common factor of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
What does 'relatively prime' mean?
'Relatively Prime' simply means that two numbers have no common factors except 1 between each other. For example, two prime numbers would have no common factors between them. i.e., look at 3 and 10. There are no common factors between these 2 numbers.
Factor that are the same for two or more numbers?
Common factors are factors that are the same for two or more numbers.
What is the term for the greatest of the common factors of two or more numbers?
The greatest of the common factors of two or more numbers is the GCF
What is the term for factors that are the same for two or more numbers?
They are called common factors when they are the same for two or more numbers. They are factors that are common to both number.
How do you determine common factors?
All nonzero numbers have factors. Some numbers have some of the same factors as other numbers. These are known as common factors. Pick two numbers. Write down their factors. The numbers that appear on both lists are common factors.
What is the highest common factors of 60?
You need at least two numbers to find a GCF.
What are factors that are the same for two or more numbers?
Common Factors
What is the least common factor of 6?
There are no common factors of 6 because there cannot be common factors without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. Thus, there cannot be a least common factor. In general, the least common factor of two numbers is 1.
What is the least common factor for two numbers if there are no common factors greater than 1?
The least common factor for two numbers is always one. The least common multiple for two numbers which have no common factors greater than one is their product.
What are the common factors of 1361224?
You need at least two numbers to find factors in common.
What is all the common factors of 27?
To have common factors there must be at least two numbers.
What are the common factors of 14 and 1000?
The common factors of the two numbers are: 1, 2
What are the common factors and greatest common factors of 29?
You need at least two numbers to find a GCF.
