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GCD of 245 and 400

To use the GCD / GCF / HCF Calculator below just enter a set of numbers separated by commas (,).

GCF Calculator

Enter values separeted by commas:
 Ex.: 2,4,8; 3,6 etc.
Detailed Answer:
Greatest Common Divisor explained here

You have reached us maybe looking for answers to the questions like: GCD of 245 and 400 or what is the highest common factor (HCF) of 245 and 400?

What is the GCF of 245 and 400?

The first step to find the gcf of 245 and 400 is to list the factors of each number. The factors of 245 are 1, 5, 7, 35, 49 and 245. The factors of 400 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200 and 400. So, the Greatest Common Factor for these numbers is 5 because it divides all them without a remainder. Read more about Common Factors below.

How to find the Greatest Common Factor

GCF example:

The first step is to find all divisors of each number. For instance, let us find the gcf(245,400).

In this case we have:

  • The factors of 245 (all the whole numbers that can divide the number without a remainder) are 1, 5, 7, 35, 49 and 245;
  • The factors of 400 are 1, 2, 4, 5, 8, 10, 16, 20, 25, 40, 50, 80, 100, 200 and 400.

The second step is to analyze which are the common divisors. It is not difficult to see that the 'Greatest Common Factor' or 'Divisor' for 245 and 400 is 5. The GCF is the largest common positive integer that divides all the numbers (245,400) without a remainder.

The GCF is also known as:

  • Greatest common divisor (gcd);
  • Highest common factor (hcf);
  • Greatest common measure (gcm), or
  • Highest common divisor

Greatest Common Factor Calculator

Greatest Common Factor Calculator

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