Greatest Common Factor of 402 and 406

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 402, 406 i.e. 2 largest integer by which both the numbers can be divided.

Greatest common factor (GCF) of 402 and 406 is 2.

GCF(402,406) = 2

GCF of 402 and 406

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

GCF of:
and

Greatest Common Factor of 402 and 406

GCF of 402 and 406 is 2

Prime Factorization of 402


2 402
3 201
67 67
1

Prime factors of 402 are 2,3,67. Prime factorization of 402 in exponential form is:

402 = 21×31×671

Prime Factorization of 406


2 406
7 203
29 29
1

Prime factors of 406 are 2,7,29. Prime factorization of 406 in exponential form is:

406 = 21×71×291

∴ So by taking common prime factors GCF of 402 and 406 is 2

Greatest Common Factor of 402 and 406 by matching factors method

Factors of 402

List of positive integer factors of 402 that divides 402 without a remainder.

1,2,3,6,67,134,201,402

Factors of 406

List of positive integer factors of 406 that divides 406 without a remainder.

1,2,7,14,29,58,203,406

Greatest Common Factor

We found the factors and prime factorization of 402 and 406. The biggest common factor number is the GCF number.
So the greatest common factor 402 and 406 is 2.

Also check out the Least Common Multiple of 402 and 406

Properties of GCF 402 and 406

(i) The GCF of 402 and 406 is associative

GCF of 402 and 406 = GCF of 406 and 402

Related Greatest Common Factor of 402

Related Greatest Common Factor of 406

Frequently Asked Questions on GCF of 402 and 406

1. What is the GCF of 402 and 406?

Answer: GCF of 402 and 406 is 2.

2. What are the Factors of 402?

Answer: Factors of 402 are 1, 2, 3, 6, 67, 134, 201, 402. There are 8 integers that are factors of 402. The greatest factor of 402 is 402.

3. What are the Factors of 406?

Answer: Factors of 406 are 1, 2, 7, 14, 29, 58, 203, 406. There are 8 integers that are factors of 406. The greatest factor of 406 is 406.

4. How to Find the GCF of 402 and 406?

Answer:

Greatest Common Factor of 402 and 406 = 2

Step 1: Find the prime factorization of 402

402 = 2 x 3 x 67

Step 2: Find the prime factorization of 406

406 = 2 x 7 x 29

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 402 and 406 is 2