Greatest Common Factor of 23, 65, 85, 421

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

• Greatest Common Factor of 23, 65, 85, 421 by common division method
• Greatest Common Factor of 23, 65, 85, 421 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 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Factors of 85

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

1,5,17,85

Factors of 421

List of positive integer factors of 421 that divides 421 without a remainder.

1,421

Greatest Common Factor

We found the factors 23,65,85,421 . The biggest common factor number is the GCF number.
So the greatest common factor 23,65,85,421 is 1.

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

• GCF of 36, 80, 86, 696
• GCF of 63, 84, 42, 146
• GCF of 89, 92, 81, 535
• GCF of 49, 11, 81, 871
• GCF of 29, 35, 64, 486

1. What is the GCF of 23, 65, 85, 421?

Answer: GCF of 23, 65, 85, 421 is 1.

2. How to Find the GCF of 23, 65, 85, 421

Answer: Greatest Common Factor(GCF) of 23, 65, 85, 421 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 65, 85, 421) = 1.