Greatest Common Factor of 378, 855, 489, 121

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

• Greatest Common Factor of 378, 855, 489, 121 by common division method
• Greatest Common Factor of 378, 855, 489, 121 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 378

List of positive integer factors of 378 that divides 378 without a remainder.

1,2,3,6,7,9,14,18,21,27,42,54,63,126,189,378

Factors of 855

List of positive integer factors of 855 that divides 855 without a remainder.

1,3,5,9,15,19,45,57,95,171,285,855

Factors of 489

List of positive integer factors of 489 that divides 489 without a remainder.

1,3,163,489

Factors of 121

List of positive integer factors of 121 that divides 121 without a remainder.

1,11,121

Greatest Common Factor

We found the factors 378,855,489,121 . The biggest common factor number is the GCF number.
So the greatest common factor 378,855,489,121 is 1.

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

• GCF of 612, 306, 623, 706
• GCF of 478, 640, 175, 569
• GCF of 242, 606, 395, 637
• GCF of 786, 262, 687, 807
• GCF of 904, 768, 549, 417

1. What is the GCF of 378, 855, 489, 121?

Answer: GCF of 378, 855, 489, 121 is 1.

2. How to Find the GCF of 378, 855, 489, 121

Answer: Greatest Common Factor(GCF) of 378, 855, 489, 121 = 1

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

Step 2: Then multiply all the prime factors GCF(378, 855, 489, 121) = 1.