- What 3 numbers make 15?
- What is the HCF of 18 and 24?
- What is the HCF of 30?
- What is the GCF of 15 and 9?
- What is the GCF of 3 and 20?
- What is the GCF of 16 and 36?
- What’s the GCF of 18 and 6?
- What are all the common factors of 10 and 15?
- What is the GCF of 7 and 10?
- What is the GCF of 70 and 42?
- What is the GCF of 15 and 30?
- What is the GCF of 15 40?
- What are the factors of 15?
- What is the GCF for 15 and 20?
- What is the GCF of 12 and 15?

## What 3 numbers make 15?

You can also achieve 15, if you add the middle number 5 three times.

The odd numbers 1,3,7, and 9 occur twice in the reductions, the even numbers 2,4,6,8 three times and the number 5 once.

Therefore you have to place number 5 in the middle of the magic 3×3 square..

## What is the HCF of 18 and 24?

We found the factors and prime factorization of 18 and 24. The biggest common factor number is the GCF number. So the greatest common factor 18 and 24 is 6.

## What is the HCF of 30?

Factors of 30 (Thirty) = 1, 2, 3, 5, 6, 10, 15 and 30. Factors of 24 (Twenty four) = 1, 2, 3, 4, 6, 8, 12 and 24. Therefore, common factor of 30 (Thirty) and 24 (Twenty four = 1, 2, 3, and 6. Highest common factor (H.C.F) of 30 (Thirty) and 24 (Twenty four = 6.

## What is the GCF of 15 and 9?

Greatest common factor (GCF) of 9 and 15 is 3.

## What is the GCF of 3 and 20?

Greatest common factor (GCF) of 3 and 20 is 1.

## What is the GCF of 16 and 36?

We found the factors and prime factorization of 16 and 36. The biggest common factor number is the GCF number. So the greatest common factor 16 and 36 is 4.

## What’s the GCF of 18 and 6?

We found the factors and prime factorization of 6 and 18. The biggest common factor number is the GCF number. So the greatest common factor 6 and 18 is 6.

## What are all the common factors of 10 and 15?

Factors of 10 = 1, 2, 5 and 10. Therefore, common factor of 15 and 10 = 1 and 5. Highest common factor (H.C.F) of 15 and 10 = 5. 4.

## What is the GCF of 7 and 10?

The prime factors and multiplicities 7 and 10 have in common are: 1. 1 is the gcf of 7 and 10. gcf(7,10) = 1.

## What is the GCF of 70 and 42?

We found the factors and prime factorization of 42 and 70. The biggest common factor number is the GCF number. So the greatest common factor 42 and 70 is 14.

## What is the GCF of 15 and 30?

Greatest common factor (GCF) of 15 and 30 is 15.

## What is the GCF of 15 40?

The factors of 40 are 40, 20, 10, 8, 5, 4, 2, 1. The common factors of 15 and 40 are 5, 1, intersecting the two sets above. In the intersection factors of 15 ∩ factors of 40 the greatest element is 5. Therefore, the greatest common factor of 15 and 40 is 5.

## What are the factors of 15?

Table of Factors and MultiplesFactorsMultiples1, 3, 5, 1515301, 2, 4, 8, 1616321, 1717341, 2, 3, 6, 9, 18183641 more rows

## What is the GCF for 15 and 20?

Greatest common factor (GCF) of 15 and 20 is 5. We will now calculate the prime factors of 15 and 20, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 15 and 20.

## What is the GCF of 12 and 15?

The factors of 12 are : 1, 2, 3, 4, 6, 12. The factors of 15 are : 1, 3, 5, 15. 1 and 3 are the only common factors (numbers which are factors of both 12 and 15). Therefore, the highest common factor of 12 and 15 is 3.