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All numbers have factors. Some numbers have some of the same factors as other numbers. These are known as common factors. The largest of these is known as the greatest common factor, or GCF.
The factors of 30 are:
1, 2, 3, 5, 6, 10, 15, 30
The factors of 42 are:
1, 2, 3, 6, 7, 14, 21, 42
The common factors are:
1, 2, 3, 6
The Greatest Common Factor:
GCF = 6
Wiki User
∙ 8y ago
Wiki User
∙ 13y agoCommon factors only apply when comparing two or more numbers - the word common means 'having the same as' !
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What is the HCF OF 81?
You need at least two numbers to find a GCF.
What is the highest common factor of 350 and 385?
There is no "common factor" of 350, to have a common factor you must have more than one number, so there is no common factor of 350.
What is the greatest common factors of 65 156 and 169?
The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The highest factor of any number is itself.
What is the highest common factor of 112?
There cannot be a common or greatest common factor of just one number. You need two or more numbers.
What is the highest factor for 95 and 115?
95 and 115's highest common factor is five.
What is the highest common factor of 6 and 36?
The highest common factor of two numbers is always equal to the smallest number if that number is a factor of the larger number. This is the case here. Since 6 is a factor of 36, 6 is the highest common factor of 6 and 36.
What is the highest common number of 48 and 42?
Not sure what the highest common number is. The highest common factor is 6
What is the highest common factor of 119?
The highest common factor of any quantity of numbers in excess of 2 is the largest number which is a factor of both. A single number cannot have a common factor, as it has no other number to have a factor in common with. However, 119 factorises as:1,7,17,119
What is the highest common factor of 90?
obviously, its highest common factor is the number itself. so the answer here is 90.
What is the greatest common factor of number 15?
You need a second number to have a highest common factor or it is infinite
What is the highest common factor for 84 168 and 182?
The highest common factor (HCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The highest factor of any number is itself.
Highest common factor of 30?
Common factor requires more than one number.
What is the highest common factor of 27?
common to what other number(s)?
What is the HCF of 25?
A single number cannot have a highest common factor. A highest common factor is used to compare two or more numbers.
What are the highest common factor of 22 and 58?
The greatest common factor (or the highest common factor) is the highest number that divides exactly into two or more numbers. 22: 1, 2, 11, 22 58: 1, 2, 29, 58 The highest common factor of 22 and 58 is 2.
What is the highest common factor of 24 and 45?
The highest common factor is the highest number that divides equally into your 2 numbers in this case 24 and 45. ok so the number that is in both of these numbers is 3 and is u list all the factors u will see. there is no other number that is in both and is the highest so 3 would be your highest common factor of 24 and 45.
Greatest common factor of 14 and 15?
The greatest (or highest) common factor is the highest number that divides exactly into two or more numbers. The greatest common factor of 14 and 15 is 1
