Greatest Common Factor of 20, 36, 71, 381

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

• Greatest Common Factor of 20, 36, 71, 381 by common division method
• Greatest Common Factor of 20, 36, 71, 381 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 20

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

1,2,4,5,10,20

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 381

List of positive integer factors of 381 that divides 381 without a remainder.

1,3,127,381

Greatest Common Factor

We found the factors 20,36,71,381 . The biggest common factor number is the GCF number.
So the greatest common factor 20,36,71,381 is 1.

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

• GCF of 91, 23, 21, 436
• GCF of 78, 26, 22, 656
• GCF of 77, 45, 45, 259
• GCF of 84, 33, 18, 377
• GCF of 10, 32, 52, 100

1. What is the GCF of 20, 36, 71, 381?

Answer: GCF of 20, 36, 71, 381 is 1.

2. How to Find the GCF of 20, 36, 71, 381

Answer: Greatest Common Factor(GCF) of 20, 36, 71, 381 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 36, 71, 381) = 1.