Greatest Common Factor of 138, 821, 209

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

• Greatest Common Factor of 138, 821, 209 by common division method
• Greatest Common Factor of 138, 821, 209 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 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Factors of 821

List of positive integer factors of 821 that divides 821 without a remainder.

1,821

Factors of 209

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

1,11,19,209

Greatest Common Factor

We found the factors 138,821,209 . The biggest common factor number is the GCF number.
So the greatest common factor 138,821,209 is 1.

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

• GCF of 671, 384, 952
• GCF of 996, 631, 544
• GCF of 377, 292, 943
• GCF of 329, 972, 455
• GCF of 456, 741, 440

1. What is the GCF of 138, 821, 209?

Answer: GCF of 138, 821, 209 is 1.

2. How to Find the GCF of 138, 821, 209

Answer: Greatest Common Factor(GCF) of 138, 821, 209 = 1

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

Step 2: Then multiply all the prime factors GCF(138, 821, 209) = 1.