Greatest Common Factor of 138, 193, 421

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

• Greatest Common Factor of 138, 193, 421 by common division method
• Greatest Common Factor of 138, 193, 421 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 193

List of positive integer factors of 193 that divides 193 without a remainder.

1,193

Factors of 421

List of positive integer factors of 421 that divides 421 without a remainder.

1,421

Greatest Common Factor

We found the factors 138,193,421 . The biggest common factor number is the GCF number.
So the greatest common factor 138,193,421 is 1.

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

• GCF of 684, 319, 243
• GCF of 644, 986, 990
• GCF of 385, 619, 586
• GCF of 648, 447, 164
• GCF of 190, 750, 738

1. What is the GCF of 138, 193, 421?

Answer: GCF of 138, 193, 421 is 1.

2. How to Find the GCF of 138, 193, 421

Answer: Greatest Common Factor(GCF) of 138, 193, 421 = 1

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

Step 2: Then multiply all the prime factors GCF(138, 193, 421) = 1.