Greatest Common Factor of 28, 16, 31, 70, 503

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

• Greatest Common Factor of 28, 16, 31, 70, 503 by common division method
• Greatest Common Factor of 28, 16, 31, 70, 503 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 16

List of positive integer factors of 16 that divides 16 without a remainder.

1,2,4,8,16

Factors of 31

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

1,31

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 503

List of positive integer factors of 503 that divides 503 without a remainder.

1,503

Greatest Common Factor

We found the factors 28,16,31,70,503 . The biggest common factor number is the GCF number.
So the greatest common factor 28,16,31,70,503 is 1.

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

• GCF of 90, 65, 25, 25, 604
• GCF of 23, 66, 48, 13, 819
• GCF of 33, 77, 93, 17, 404
• GCF of 47, 49, 60, 47, 183
• GCF of 96, 76, 20, 30, 791

1. What is the GCF of 28, 16, 31, 70, 503?

Answer: GCF of 28, 16, 31, 70, 503 is 1.

2. How to Find the GCF of 28, 16, 31, 70, 503

Answer: Greatest Common Factor(GCF) of 28, 16, 31, 70, 503 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 16, 31, 70, 503) = 1.