Greatest Common Factor of 40, 81, 12, 343

Greatest common factor or Greatest common divisor (GCD) can be calculated in two ways

• Greatest Common Factor of 40, 81, 12, 343 by common division method
• Greatest Common Factor of 40, 81, 12, 343 with matching the biggest common factor

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∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 40

List of positive integer factors of 40 that divides 40 without a remainder.

1,2,4,5,8,10,20,40

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 343

List of positive integer factors of 343 that divides 343 without a remainder.

1,7,49,343

Greatest Common Factor

We found the factors 40,81,12,343 . The biggest common factor number is the GCF number.
So the greatest common factor 40,81,12,343 is 1.

Here are some samples of GCF of two or more Numbers calculations.

• GCF of 70, 87, 84, 493
• GCF of 96, 50, 76, 873
• GCF of 34, 59, 24, 522
• GCF of 54, 71, 67, 715
• GCF of 51, 19, 62, 742

1. What is the GCF of 40, 81, 12, 343?

Answer: GCF of 40, 81, 12, 343 is 1.

2. How to Find the GCF of 40, 81, 12, 343

Answer: Greatest Common Factor(GCF) of 40, 81, 12, 343 = 1

Step 1: Divide all the numbers with common prime numbers having remainder zero.

Step 2: Then multiply all the prime factors GCF(40, 81, 12, 343) = 1.