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Factors are numbers we can multiply together to get another number.

Example: What are the factors of 12?

3 Ã— 4 = 12

Also 2 Ã— 6 = 12

And 1 Ã— 12 = 12

So Factors of 12 are 1,2,3,4,6 and 12.

For finding factor of any number, just make sure you have thought about all possible combinations of getting that number.

When you find that the factors of two or more numbers are same or common, then they are the "common factors".

Coming to your question,

The factors of 20 are: 1, 2, 4, 5, 10, 20

The factors of 50 are: 1, 2, 5, 10, 25, 50

Common factors are 1, 2, 5, 10

Then the greatest common factor is 10.

More answers

You need at least two numbers to find a GCF.

The greatest common factor of the numbers 20 and 50 is 10.

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.

Their highest common factor is: 10.

The GCF is 10.

The GCF is 10.

The GCF is 10.

100

It is: 10

Q: Highest common factor of 50

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The highest common factor of the four numbers is 1.

50 and 40's highest common factor is ten.

The least common factor of any set of integers is 1.

The GCF is 2.

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.

Related questions

The highest common factor is 5

The highest common factor (HCF) is 10.

The highest common factor of the four numbers is 1.

The highest common factor depends entirely on the second number, as a highest common factor is the highest factor shared by two or more numbers. The factors of 50 are 1, 2, 5, 10, 25, 50. The prime factorisation of 50 is 2x5x5.

50 and 14's highest common factor is two.

The Greatest Common Factor (GCF) is: 50

10

10

It is: 50

It is: 10

50

It is: 50