# What is the greatest common factor of 24 and 42?

Greatest common factor is 6

Break the numbers down into their prime number factors.

Some prime numbers: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 ....

Observe that the only prime numbers in both are 2 and 3.

So the product

Since there is no other prime common to both

So, the highest/greatest common factor of

By signing up, you agree to our Terms of Service and Privacy Policy

My favourite method for finding the greatest common factor (GCF) of two numbers goes as follows:

Divide the larger number by the smaller to give a quotient and remainder.

If the remainder is zero then the smaller number is the GCF.

Otherwise repeat with the smaller number and the remainder.

In our example we find:

By signing up, you agree to our Terms of Service and Privacy Policy

The greatest common factor of 24 and 42 is 6.

By signing up, you agree to our Terms of Service and Privacy Policy

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

- 98% accuracy study help
- Covers math, physics, chemistry, biology, and more
- Step-by-step, in-depth guides
- Readily available 24/7