Greatest Common Factor of 80, 89, 66, 421

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

• Greatest Common Factor of 80, 89, 66, 421 by common division method
• Greatest Common Factor of 80, 89, 66, 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 80

List of positive integer factors of 80 that divides 80 without a remainder.

1,2,4,5,8,10,16,20,40,80

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

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 421

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

1,421

Greatest Common Factor

We found the factors 80,89,66,421 . The biggest common factor number is the GCF number.
So the greatest common factor 80,89,66,421 is 1.

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

• GCF of 22, 93, 79, 652
• GCF of 30, 90, 83, 198
• GCF of 48, 86, 21, 115
• GCF of 55, 98, 94, 541
• GCF of 84, 92, 73, 619

1. What is the GCF of 80, 89, 66, 421?

Answer: GCF of 80, 89, 66, 421 is 1.

2. How to Find the GCF of 80, 89, 66, 421

Answer: Greatest Common Factor(GCF) of 80, 89, 66, 421 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 89, 66, 421) = 1.