Greatest Common Factor of 40, 81, 12, 684

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

• Greatest Common Factor of 40, 81, 12, 684 by common division method
• Greatest Common Factor of 40, 81, 12, 684 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 684

List of positive integer factors of 684 that divides 684 without a remainder.

1,2,3,4,6,9,12,18,19,36,38,57,76,114,171,228,342,684

Greatest Common Factor

We found the factors 40,81,12,684 . The biggest common factor number is the GCF number.
So the greatest common factor 40,81,12,684 is 1.

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

• GCF of 29, 31, 56, 422
• GCF of 95, 16, 58, 519
• GCF of 52, 54, 62, 242
• GCF of 27, 73, 78, 208
• GCF of 54, 13, 45, 857

1. What is the GCF of 40, 81, 12, 684?

Answer: GCF of 40, 81, 12, 684 is 1.

2. How to Find the GCF of 40, 81, 12, 684

Answer: Greatest Common Factor(GCF) of 40, 81, 12, 684 = 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, 684) = 1.