Greatest Common Factor of 78, 21, 52, 921

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

• Greatest Common Factor of 78, 21, 52, 921 by common division method
• Greatest Common Factor of 78, 21, 52, 921 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 52

List of positive integer factors of 52 that divides 52 without a remainder.

1,2,4,13,26,52

Factors of 921

List of positive integer factors of 921 that divides 921 without a remainder.

1,3,307,921

Greatest Common Factor

We found the factors 78,21,52,921 . The biggest common factor number is the GCF number.
So the greatest common factor 78,21,52,921 is 1.

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

• GCF of 79, 72, 24, 292
• GCF of 53, 80, 65, 821
• GCF of 50, 76, 28, 949
• GCF of 48, 55, 56, 916
• GCF of 42, 46, 71, 246

1. What is the GCF of 78, 21, 52, 921?

Answer: GCF of 78, 21, 52, 921 is 1.

2. How to Find the GCF of 78, 21, 52, 921

Answer: Greatest Common Factor(GCF) of 78, 21, 52, 921 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 21, 52, 921) = 1.