GCF of 9990 and 7815

What is the GCF of 9990 and 7815?


GCF of 9990 and 7815

is 15

Formula How to

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What is the Greatest Common Factor of 9990 and 7815? The greatest common factor (GCF) of a set of numbers is the largest positive integer that divides each of the numbers evenly. It's also called the greatest common divisor (GCD).

The GCF can be found using a variety of methods, including prime factorization and division. The Euclidean algorithm is a commonly used method for finding the GCF of two numbers, and it can be extended to finding the GCF of more than two numbers.

To find GCF (Greatest Common Factor) between two numbers, mainly there are two methods available, Those are-

1. Prime Factorization Method: Find the prime factors of both number and then multiply of all the common prime factors value, you will get the GCF value.

2. Factors Method: Find the factors of both number. In those both factors the highest common factor number is the GCF value.

For calculation, here's how to calculate GCF of 9990 and 7815 using those formula above, step by step instructions are given below

Prime Factorization Method:

  1. Find the prime factors of the first number 9990.
    2, 3, 3, 3, 5, 37
  2. Find the prime factors of the second number 7815.
    3, 5, 521
  3. Multiply of all the common prime factors is the GCF value. Which is,
    15

Factors Method:

  1. Find the factors of the first number 9990.
    1, 2, 3, 5, 6, 9, 10, 15, 18, 27, 30, 37, 45, 54, 74, 90, 111, 135, 185, 222, 270, 333, 370, 555, 666, 999, 1110, 1665, 1998, 3330, 4995, 9990
  2. Find the factors of the second number 7815.
    1, 3, 5, 15, 521, 1563, 2605, 7815
  3. The biggest common factor number is the GCF value. Which is,
    15

GCF (Greatest Common Factor) of 9990 and 7815 is 15.

GCD (Greatest Common Divisor) of 9990 and 7815 is 15.

HCF (Highest Common Factor) of 9990 and 7815 is 15.

Number GCF LCM
9990 & 7810 10 7802190
9990 & 7811 1 78031890
9990 & 7812 18 4335660
9990 & 7813 1 78051870
9990 & 7814 2 39030930
9990 & 7815 15 5204790
9990 & 7816 2 39040920
9990 & 7817 1 78091830
9990 & 7818 6 13016970
9990 & 7819 1 78111810
9990 & 7820 10 7812180