Greatest Common Factor of 388, 209, 420

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

• Greatest Common Factor of 388, 209, 420 by common division method
• Greatest Common Factor of 388, 209, 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 388

List of positive integer factors of 388 that divides 388 without a remainder.

1,2,4,97,194,388

Factors of 209

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

1,11,19,209

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 388,209,420 . The biggest common factor number is the GCF number.
So the greatest common factor 388,209,420 is 1.

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

• GCF of 227, 189, 275
• GCF of 272, 511, 913
• GCF of 565, 909, 107
• GCF of 177, 586, 276
• GCF of 107, 625, 335

1. What is the GCF of 388, 209, 420?

Answer: GCF of 388, 209, 420 is 1.

2. How to Find the GCF of 388, 209, 420

Answer: Greatest Common Factor(GCF) of 388, 209, 420 = 1

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

Step 2: Then multiply all the prime factors GCF(388, 209, 420) = 1.