Question

find the HCF of 18,32,40​ I know answer 1440 I need method

Answer 1

Answer:

Step-by-step explanation:

The instructions to find the GCF of 18, 32 and 40 are the next:

1. Decompose all numbers into prime factors

18 2 9 3 3 3 1  32 2 16 2 8 2 4 2 2 2 1  40 2 20 2 10 2 5 5 1  

2. Write all numbers as the product of its prime factors

Prime factors of 18 = 2 . 32

Prime factors of 32 = 25

Prime factors of 40 = 23 . 5

3. Choose the common prime factors with the lowest exponent

Common prime factors: 2

Common prime factors with the lowest exponent: 21

4. Calculate the Greatest Common Factor or GCF

Remember, to find the GCF of several numbers you must multiply the common prime factors with the lowest exponent.

GCF = 21 = 2

Answer 2

Answer:

Ans =2 but in my studies hcf =gcf so meathod is

Step-by-step explanation:

GCF(18,32,40)

Greatest Common Factor is :

2

Calculate Greatest Common Factor for :

18, 32 and 40

Factorize of the above numbers :

18 = 2 • 32

32 = 25

40 = 23 • 5

Build a prime factors table

Number of times each prime factor

appears in the factorization of :

Prime

Factor Number

18 Number

32 Number

40 G.C.F

(min)

2 1 5 3 1

3 2 0 0 0

5 0 0 1 0

GCF = 2

Greatest Common Factor is :

2