Naive Solution

1. Find the prime factors of a using prime factorization.
2. Find the count of each prime factor of a and store it in a Hashmap.
3. Prime factorize b using distinct prime factors of a.
4. Then the total number of divisors would be equal to the product of (count + 1)

Is GCD and HCF same?

HCF= Highest common factors. GCD= Greatest common divisor. Names are different otherwise they’re one and same.

How do you reverse a number algorithm?

Where reverse is a variable representing the reverse of number.

1. Step 1 — Isolate the last digit in number. lastDigit = number % 10.
2. Step 2 — Append lastDigit to reverse. reverse = (reverse * 10) + lastDigit.
3. Step 3-Remove last digit from number. number = number / 10.
4. Iterate this process. while (number > 0)

Is HCF and GCD same?

How do you find the GCD of three numbers in C?

int x = 100, y = 60, z = 12; int ans = gcd(gcd(x, y), z); printf(“%d”,ans);…Let’s Code :

1. #include
2. int main()
3. {
4. int a,b,c,hcf,st;
5. printf(“Enter three numbers : “);
6. scanf(“%d,%d,%d”, &a,&b,&c);
7. st=a
8. for (hcf=st;hcf>=1;hcf–)

What is a divisor of 4?

What is the list of divisors from 1 to 100?

What are common factors of two numbers?

What is a common factor?

• A common factor is a number that can be divided into two different numbers, without leaving a remainder.
• Often numbers can share more than one common factor.
• It is possible to find the common factors of more than two numbers.

  Which is the flow for the greatest common divisor?

  The Flowchart given here represents the calculation of GCD (Greatest Common Divisor). The above flowchart is drawn in the Raptor tool. The flowchart represents the flow for finding Greatest Common Divisor Example: GCD of two numbers 12 & 24 is 12 The code for calculating the LCM and GCD is given in the below link.

  How to find the greatest divisor of two numbers?

  The greatest common divisor (GCD) of two integers a and b is the largest integer that is a factor of both a and b. The GCD of any number and 1 is 1, and the GCD of any number and 0 is that number. One efficient way to compute the GCD of two numbers is to use Euclid’s algorithm, which states the following:

  Which is the greatest common factor of two numbers?

  GCD (Greatest Common Divisor) or HCF (Highest Common Factor) of two numbers is the largest number that divides both of them. For example GCD of 20 and 28 is 4 and GCD of 98 and 56 is 14.

  How to draw a flowchart for calculating GCD?

  The above flowchart is drawn in the Raptor tool. The flowchart represents the flow for finding Greatest Common Divisor Example: GCD of two numbers 12 & 24 is 12 The code for calculating the LCM and GCD is given in the below link.