Greatest Common Factor of 80, 49, 21, 442

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

• Greatest Common Factor of 80, 49, 21, 442 by common division method
• Greatest Common Factor of 80, 49, 21, 442 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 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 21

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

1,3,7,21

Factors of 442

List of positive integer factors of 442 that divides 442 without a remainder.

1,2,13,17,26,34,221,442

Greatest Common Factor

We found the factors 80,49,21,442 . The biggest common factor number is the GCF number.
So the greatest common factor 80,49,21,442 is 1.

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

• GCF of 84, 39, 12, 403
• GCF of 85, 83, 16, 302
• GCF of 95, 10, 37, 345
• GCF of 11, 67, 69, 329
• GCF of 30, 40, 60, 489

1. What is the GCF of 80, 49, 21, 442?

Answer: GCF of 80, 49, 21, 442 is 1.

2. How to Find the GCF of 80, 49, 21, 442

Answer: Greatest Common Factor(GCF) of 80, 49, 21, 442 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 49, 21, 442) = 1.