 # Question: What Is The HCF Of 15 And 9?

## What is the HCF of 15 and 20?

5Greatest 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 18?

Example: Find the GCF of 18 and 27 The factors of 18 are 1, 2, 3, 6, 9, 18. The factors of 27 are 1, 3, 9, 27. The common factors of 18 and 27 are 1, 3 and 9. The greatest common factor of 18 and 27 is 9.

## What is the HCF of 9 and 11?

gcf, hcf, gcd (9; 11) = 1: greatest (highest) common factor (divisor), calculated. Coprime numbers (relatively prime). Numbers have no common prime factors.

## 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.

## How do you find the HCF of a number?

The highest common factor is found by multiplying all the factors which appear in both lists: So the HCF of 60 and 72 is 2 × 2 × 3 which is 12. The lowest common multiple is found by multiplying all the factors which appear in either list: So the LCM of 60 and 72 is 2 × 2 × 2 × 3 × 3 × 5 which is 360.

## What is the HCF of 15 and 10?

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.

## What is HCF example?

HCF : The largest number that divides two or more numbers is the highest common factor (HCF) for those numbers. For example, consider the numbers 30 (2 x 3 x 5), 36 (2 x 2 x 3 x 3), 42 (2 x 3 x 7), 45 (3 x 3 x 5). 3 is the largest number that divides each of these numbers, and hence, is the HCF for these numbers.

## What is the HCF of 16?

Consider the highest common factor of 16 and 24 again. The common factors are 1, 2, 4 and 8. So, the highest common factor is 8.

## What is the HCF of 15?

Factors of 15 (Fifteen) = 1, 3, 5 and 15. Factors of 35 (Thirty five) = 1, 5, 7 and 35. Therefore, common factor of 15 (Fifteen) and 35 (Thirty five) = 1 and 5. Highest common factor (H.C.F) of 15 (Fifteen) and 35 (Thirty five) = 5.

## What is the GCF of 9 12 and 15?

find gcf (9, 12, 15, . . . . , 21) = ? step 3The common prime factor or the product of all common prime factors between all integers is the highest common factor of this group of integers (9, 12, 15, 18 & 21).

## What is the HCF of 5 and 25?

The hcf(25,35) is 5 .

## What is the highest common factor of 9?

Finding the Greatest Common FactorTwo NumbersFactorsGreatest Common Factor9 and 129: 1, 3, 9 12: 1, 2, 3, 4, 6, 123

## What is the HCF of 2 and 9?

We found the factors and prime factorization of 2 and 9. The biggest common factor number is the GCF number. So the greatest common factor 2 and 9 is 1.

## What is the HCF of 13 23 and 14?

Given that other two factors in the LCM are 13 and 14. We have seen that the numbers are (23 × 13) and (23 × 14). Clearly we get HCF as 23 and the factors in the LCM as 13, 14 and 23.