Greatest Common Factor of 780, 822, 638

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

• Greatest Common Factor of 780, 822, 638 by common division method
• Greatest Common Factor of 780, 822, 638 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

Factors of 780

List of positive integer factors of 780 that divides 780 without a remainder.

1,2,3,4,5,6,10,12,13,15,20,26,30,39,52,60,65,78,130,156,195,260,390,780

Factors of 822

List of positive integer factors of 822 that divides 822 without a remainder.

1,2,3,6,137,274,411,822

Factors of 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

Greatest Common Factor

We found the factors 780,822,638 . The biggest common factor number is the GCF number.
So the greatest common factor 780,822,638 is 2.

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

• GCF of 701, 844, 320
• GCF of 877, 207, 591
• GCF of 171, 158, 839
• GCF of 240, 744, 608
• GCF of 581, 810, 556

1. What is the GCF of 780, 822, 638?

Answer: GCF of 780, 822, 638 is 2.

2. How to Find the GCF of 780, 822, 638

Answer: Greatest Common Factor(GCF) of 780, 822, 638 = 2

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

Step 2: Then multiply all the prime factors GCF(780, 822, 638) = 2.