Greatest Common Factor of 28, 15, 39, 477

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

• Greatest Common Factor of 28, 15, 39, 477 by common division method
• Greatest Common Factor of 28, 15, 39, 477 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 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 39

List of positive integer factors of 39 that divides 39 without a remainder.

1,3,13,39

Factors of 477

List of positive integer factors of 477 that divides 477 without a remainder.

1,3,9,53,159,477

Greatest Common Factor

We found the factors 28,15,39,477 . The biggest common factor number is the GCF number.
So the greatest common factor 28,15,39,477 is 1.

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

• GCF of 47, 29, 80, 158
• GCF of 44, 44, 67, 967
• GCF of 32, 37, 66, 866
• GCF of 70, 61, 62, 696
• GCF of 94, 20, 39, 558

1. What is the GCF of 28, 15, 39, 477?

Answer: GCF of 28, 15, 39, 477 is 1.

2. How to Find the GCF of 28, 15, 39, 477

Answer: Greatest Common Factor(GCF) of 28, 15, 39, 477 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 15, 39, 477) = 1.