Greatest Common Factor of 28, 31, 398

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

• Greatest Common Factor of 28, 31, 398 by common division method
• Greatest Common Factor of 28, 31, 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 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

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 28,31,398 . The biggest common factor number is the GCF number.
So the greatest common factor 28,31,398 is 1.

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

• GCF of 72, 59, 385
• GCF of 63, 13, 397
• GCF of 83, 34, 223
• GCF of 50, 10, 800
• GCF of 41, 21, 868

1. What is the GCF of 28, 31, 398?

Answer: GCF of 28, 31, 398 is 1.

2. How to Find the GCF of 28, 31, 398

Answer: Greatest Common Factor(GCF) of 28, 31, 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, 31, 398) = 1.