Greatest Common Factor of 87, 98, 28, 855

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

• Greatest Common Factor of 87, 98, 28, 855 by common division method
• Greatest Common Factor of 87, 98, 28, 855 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 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 98

List of positive integer factors of 98 that divides 98 without a remainder.

1,2,7,14,49,98

Factors of 28

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

1,2,4,7,14,28

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

Greatest Common Factor

We found the factors 87,98,28,855 . The biggest common factor number is the GCF number.
So the greatest common factor 87,98,28,855 is 1.

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

• GCF of 81, 72, 35, 675
• GCF of 99, 46, 96, 165
• GCF of 11, 75, 89, 669
• GCF of 80, 79, 36, 246
• GCF of 56, 97, 74, 318

1. What is the GCF of 87, 98, 28, 855?

Answer: GCF of 87, 98, 28, 855 is 1.

2. How to Find the GCF of 87, 98, 28, 855

Answer: Greatest Common Factor(GCF) of 87, 98, 28, 855 = 1

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

Step 2: Then multiply all the prime factors GCF(87, 98, 28, 855) = 1.