Greatest Common Factor of 387, 20, 561, 540

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

• Greatest Common Factor of 387, 20, 561, 540 by common division method
• Greatest Common Factor of 387, 20, 561, 540 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 387

List of positive integer factors of 387 that divides 387 without a remainder.

1,3,9,43,129,387

Factors of 20

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

1,2,4,5,10,20

Factors of 561

List of positive integer factors of 561 that divides 561 without a remainder.

1,3,11,17,33,51,187,561

Factors of 540

List of positive integer factors of 540 that divides 540 without a remainder.

1,2,3,4,5,6,9,10,12,15,18,20,27,30,36,45,54,60,90,108,135,180,270,540

Greatest Common Factor

We found the factors 387,20,561,540 . The biggest common factor number is the GCF number.
So the greatest common factor 387,20,561,540 is 1.

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

• GCF of 181, 64, 151, 378
• GCF of 969, 12, 535, 585
• GCF of 639, 45, 738, 759
• GCF of 476, 41, 266, 995
• GCF of 505, 11, 436, 497

1. What is the GCF of 387, 20, 561, 540?

Answer: GCF of 387, 20, 561, 540 is 1.

2. How to Find the GCF of 387, 20, 561, 540

Answer: Greatest Common Factor(GCF) of 387, 20, 561, 540 = 1

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

Step 2: Then multiply all the prime factors GCF(387, 20, 561, 540) = 1.