Greatest Common Factor of 80, 73, 19, 420

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

• Greatest Common Factor of 80, 73, 19, 420 by common division method
• Greatest Common Factor of 80, 73, 19, 420 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 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 19

List of positive integer factors of 19 that divides 19 without a remainder.

1,19

Factors of 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Greatest Common Factor

We found the factors 80,73,19,420 . The biggest common factor number is the GCF number.
So the greatest common factor 80,73,19,420 is 1.

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

• GCF of 91, 55, 25, 212
• GCF of 97, 66, 98, 992
• GCF of 50, 24, 40, 567
• GCF of 61, 29, 75, 856
• GCF of 53, 57, 17, 413

1. What is the GCF of 80, 73, 19, 420?

Answer: GCF of 80, 73, 19, 420 is 1.

2. How to Find the GCF of 80, 73, 19, 420

Answer: Greatest Common Factor(GCF) of 80, 73, 19, 420 = 1

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

Step 2: Then multiply all the prime factors GCF(80, 73, 19, 420) = 1.