Greatest Common Factor of 820, 291, 138, 64

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

• Greatest Common Factor of 820, 291, 138, 64 by common division method
• Greatest Common Factor of 820, 291, 138, 64 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 820

List of positive integer factors of 820 that divides 820 without a remainder.

1,2,4,5,10,20,41,82,164,205,410,820

Factors of 291

List of positive integer factors of 291 that divides 291 without a remainder.

1,3,97,291

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Factors of 64

List of positive integer factors of 64 that divides 64 without a remainder.

1,2,4,8,16,32,64

Greatest Common Factor

We found the factors 820,291,138,64 . The biggest common factor number is the GCF number.
So the greatest common factor 820,291,138,64 is 1.

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

• GCF of 988, 336, 543, 32
• GCF of 339, 118, 272, 39
• GCF of 571, 741, 273, 58
• GCF of 488, 722, 937, 42
• GCF of 985, 155, 283, 75

1. What is the GCF of 820, 291, 138, 64?

Answer: GCF of 820, 291, 138, 64 is 1.

2. How to Find the GCF of 820, 291, 138, 64

Answer: Greatest Common Factor(GCF) of 820, 291, 138, 64 = 1

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

Step 2: Then multiply all the prime factors GCF(820, 291, 138, 64) = 1.