Greatest Common Factor of 138, 786, 421

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

• Greatest Common Factor of 138, 786, 421 by common division method
• Greatest Common Factor of 138, 786, 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 786

List of positive integer factors of 786 that divides 786 without a remainder.

1,2,3,6,131,262,393,786

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 138,786,421 . The biggest common factor number is the GCF number.
So the greatest common factor 138,786,421 is 1.

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

• GCF of 117, 481, 954
• GCF of 507, 758, 399
• GCF of 451, 784, 587
• GCF of 438, 356, 708
• GCF of 781, 568, 782

1. What is the GCF of 138, 786, 421?

Answer: GCF of 138, 786, 421 is 1.

2. How to Find the GCF of 138, 786, 421

Answer: Greatest Common Factor(GCF) of 138, 786, 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, 786, 421) = 1.