Greatest Common Factor of 85, 34, 81, 63

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

• Greatest Common Factor of 85, 34, 81, 63 by common division method
• Greatest Common Factor of 85, 34, 81, 63 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 85

List of positive integer factors of 85 that divides 85 without a remainder.

1,5,17,85

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

Greatest Common Factor

We found the factors 85,34,81,63 . The biggest common factor number is the GCF number.
So the greatest common factor 85,34,81,63 is 1.

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

• GCF of 48, 12, 90, 93
• GCF of 93, 38, 12, 31
• GCF of 54, 89, 45, 39
• GCF of 25, 29, 24, 81
• GCF of 51, 38, 97, 31

1. What is the GCF of 85, 34, 81, 63?

Answer: GCF of 85, 34, 81, 63 is 1.

2. How to Find the GCF of 85, 34, 81, 63

Answer: Greatest Common Factor(GCF) of 85, 34, 81, 63 = 1

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

Step 2: Then multiply all the prime factors GCF(85, 34, 81, 63) = 1.