Greatest Common Factor of 74, 20, 21, 845

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

• Greatest Common Factor of 74, 20, 21, 845 by common division method
• Greatest Common Factor of 74, 20, 21, 845 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 74

List of positive integer factors of 74 that divides 74 without a remainder.

1,2,37,74

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 21

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

1,3,7,21

Factors of 845

List of positive integer factors of 845 that divides 845 without a remainder.

1,5,13,65,169,845

Greatest Common Factor

We found the factors 74,20,21,845 . The biggest common factor number is the GCF number.
So the greatest common factor 74,20,21,845 is 1.

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

• GCF of 99, 82, 26, 732
• GCF of 58, 36, 32, 247
• GCF of 93, 44, 26, 527
• GCF of 25, 30, 47, 545
• GCF of 52, 15, 91, 342

1. What is the GCF of 74, 20, 21, 845?

Answer: GCF of 74, 20, 21, 845 is 1.

2. How to Find the GCF of 74, 20, 21, 845

Answer: Greatest Common Factor(GCF) of 74, 20, 21, 845 = 1

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

Step 2: Then multiply all the prime factors GCF(74, 20, 21, 845) = 1.