Greatest Common Factor of 85, 21, 66, 430

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

• Greatest Common Factor of 85, 21, 66, 430 by common division method
• Greatest Common Factor of 85, 21, 66, 430 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 21

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

1,3,7,21

Factors of 66

List of positive integer factors of 66 that divides 66 without a remainder.

1,2,3,6,11,22,33,66

Factors of 430

List of positive integer factors of 430 that divides 430 without a remainder.

1,2,5,10,43,86,215,430

Greatest Common Factor

We found the factors 85,21,66,430 . The biggest common factor number is the GCF number.
So the greatest common factor 85,21,66,430 is 1.

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

• GCF of 11, 24, 53, 941
• GCF of 24, 94, 76, 983
• GCF of 98, 84, 76, 108
• GCF of 45, 39, 33, 253
• GCF of 24, 47, 20, 678

1. What is the GCF of 85, 21, 66, 430?

Answer: GCF of 85, 21, 66, 430 is 1.

2. How to Find the GCF of 85, 21, 66, 430

Answer: Greatest Common Factor(GCF) of 85, 21, 66, 430 = 1

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

Step 2: Then multiply all the prime factors GCF(85, 21, 66, 430) = 1.