Greatest Common Factor of 28, 38, 78, 387

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

• Greatest Common Factor of 28, 38, 78, 387 by common division method
• Greatest Common Factor of 28, 38, 78, 387 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

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 387

List of positive integer factors of 387 that divides 387 without a remainder.

1,3,9,43,129,387

Greatest Common Factor

We found the factors 28,38,78,387 . The biggest common factor number is the GCF number.
So the greatest common factor 28,38,78,387 is 1.

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

• GCF of 23, 86, 68, 275
• GCF of 64, 72, 71, 486
• GCF of 55, 78, 85, 985
• GCF of 94, 45, 13, 745
• GCF of 15, 41, 13, 920

1. What is the GCF of 28, 38, 78, 387?

Answer: GCF of 28, 38, 78, 387 is 1.

2. How to Find the GCF of 28, 38, 78, 387

Answer: Greatest Common Factor(GCF) of 28, 38, 78, 387 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 38, 78, 387) = 1.