Greatest Common Factor of 28, 34, 25, 398

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

• Greatest Common Factor of 28, 34, 25, 398 by common division method
• Greatest Common Factor of 28, 34, 25, 398 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 28

List of positive integer factors of 28 that divides 28 without a remainder.

1,2,4,7,14,28

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 398

List of positive integer factors of 398 that divides 398 without a remainder.

1,2,199,398

Greatest Common Factor

We found the factors 28,34,25,398 . The biggest common factor number is the GCF number.
So the greatest common factor 28,34,25,398 is 1.

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

• GCF of 20, 40, 83, 486
• GCF of 89, 78, 70, 221
• GCF of 80, 62, 48, 826
• GCF of 58, 73, 39, 256
• GCF of 52, 66, 60, 594

1. What is the GCF of 28, 34, 25, 398?

Answer: GCF of 28, 34, 25, 398 is 1.

2. How to Find the GCF of 28, 34, 25, 398

Answer: Greatest Common Factor(GCF) of 28, 34, 25, 398 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 34, 25, 398) = 1.