Greatest Common Factor of 57, 40, 13, 820

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

• Greatest Common Factor of 57, 40, 13, 820 by common division method
• Greatest Common Factor of 57, 40, 13, 820 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 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

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

Greatest Common Factor

We found the factors 57,40,13,820 . The biggest common factor number is the GCF number.
So the greatest common factor 57,40,13,820 is 1.

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

• GCF of 55, 67, 66, 586
• GCF of 78, 13, 98, 280
• GCF of 46, 10, 70, 813
• GCF of 57, 48, 70, 228
• GCF of 99, 69, 84, 353

1. What is the GCF of 57, 40, 13, 820?

Answer: GCF of 57, 40, 13, 820 is 1.

2. How to Find the GCF of 57, 40, 13, 820

Answer: Greatest Common Factor(GCF) of 57, 40, 13, 820 = 1

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

Step 2: Then multiply all the prime factors GCF(57, 40, 13, 820) = 1.