Greatest Common Factor of 64, 51, 20, 385

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

• Greatest Common Factor of 64, 51, 20, 385 by common division method
• Greatest Common Factor of 64, 51, 20, 385 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 64

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

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

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 385

List of positive integer factors of 385 that divides 385 without a remainder.

1,5,7,11,35,55,77,385

Greatest Common Factor

We found the factors 64,51,20,385 . The biggest common factor number is the GCF number.
So the greatest common factor 64,51,20,385 is 1.

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

• GCF of 52, 86, 65, 378
• GCF of 63, 67, 10, 846
• GCF of 91, 47, 54, 191
• GCF of 66, 36, 41, 821
• GCF of 12, 10, 74, 566

1. What is the GCF of 64, 51, 20, 385?

Answer: GCF of 64, 51, 20, 385 is 1.

2. How to Find the GCF of 64, 51, 20, 385

Answer: Greatest Common Factor(GCF) of 64, 51, 20, 385 = 1

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

Step 2: Then multiply all the prime factors GCF(64, 51, 20, 385) = 1.