Greatest Common Factor of 438 and 440

Created By : Jatin Gogia

Reviewed By : Rajasekhar Valipishetty

Last Updated : Apr 06, 2023

Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 438, 440 i.e. 2 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 438 and 440 is 2.

GCF(438,440) = 2

GCF of 438 and 440

Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;

GCF of:
and

Greatest Common Factor of 438 and 440

GCF of 438 and 440 is 2

Prime Factorization of 438


2 438
3 219
73 73
1

Prime factors of 438 are 2,3,73. Prime factorization of 438 in exponential form is:

438 = 21×31×731

Prime Factorization of 440


2 440
2 220
2 110
5 55
11 11
1

Prime factors of 440 are 2,5,11. Prime factorization of 440 in exponential form is:

440 = 23×51×111

∴ So by taking common prime factors GCF of 438 and 440 is 2

Greatest Common Factor of 438 and 440 by matching factors method

Factors of 438

List of positive integer factors of 438 that divides 438 without a remainder.

1,2,3,6,73,146,219,438

Factors of 440

List of positive integer factors of 440 that divides 440 without a remainder.

1,2,4,5,8,10,11,20,22,40,44,55,88,110,220,440

Greatest Common Factor

We found the factors and prime factorization of 438 and 440. The biggest common factor number is the GCF number.
So the greatest common factor 438 and 440 is 2.

Also check out the Least Common Multiple of 438 and 440

Properties of GCF 438 and 440

(i) The GCF of 438 and 440 is associative

GCF of 438 and 440 = GCF of 440 and 438

Related Greatest Common Factor of 438

Related Greatest Common Factor of 440

Frequently Asked Questions on GCF of 438 and 440

1. What is the GCF of 438 and 440?

Answer: GCF of 438 and 440 is 2.

2. What are the Factors of 438?

Answer: Factors of 438 are 1, 2, 3, 6, 73, 146, 219, 438. There are 8 integers that are factors of 438. The greatest factor of 438 is 438.

3. What are the Factors of 440?

Answer: Factors of 440 are 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440. There are 16 integers that are factors of 440. The greatest factor of 440 is 440.

4. How to Find the GCF of 438 and 440?

Answer:

Greatest Common Factor of 438 and 440 = 2

Step 1: Find the prime factorization of 438

438 = 2 x 3 x 73

Step 2: Find the prime factorization of 440

440 = 2 x 2 x 2 x 5 x 11

Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:

GCF = 2

Step 4: Therefore, the greatest common factor of 438 and 440 is 2