Greatest Common Factor of 209, 387, 420

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

• Greatest Common Factor of 209, 387, 420 by common division method
• Greatest Common Factor of 209, 387, 420 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 209

List of positive integer factors of 209 that divides 209 without a remainder.

1,11,19,209

Factors of 387

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

1,3,9,43,129,387

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 209,387,420 . The biggest common factor number is the GCF number.
So the greatest common factor 209,387,420 is 1.

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

• GCF of 948, 389, 313
• GCF of 105, 712, 793
• GCF of 445, 529, 231
• GCF of 994, 775, 857
• GCF of 384, 996, 635

1. What is the GCF of 209, 387, 420?

Answer: GCF of 209, 387, 420 is 1.

2. How to Find the GCF of 209, 387, 420

Answer: Greatest Common Factor(GCF) of 209, 387, 420 = 1

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

Step 2: Then multiply all the prime factors GCF(209, 387, 420) = 1.