Greatest Common Factor of 28, 90, 57, 169

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

• Greatest Common Factor of 28, 90, 57, 169 by common division method
• Greatest Common Factor of 28, 90, 57, 169 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 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

Factors of 169

List of positive integer factors of 169 that divides 169 without a remainder.

1,13,169

Greatest Common Factor

We found the factors 28,90,57,169 . The biggest common factor number is the GCF number.
So the greatest common factor 28,90,57,169 is 1.

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

• GCF of 95, 89, 53, 274
• GCF of 79, 77, 11, 466
• GCF of 58, 57, 67, 161
• GCF of 67, 42, 50, 664
• GCF of 92, 18, 22, 848

1. What is the GCF of 28, 90, 57, 169?

Answer: GCF of 28, 90, 57, 169 is 1.

2. How to Find the GCF of 28, 90, 57, 169

Answer: Greatest Common Factor(GCF) of 28, 90, 57, 169 = 1

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

Step 2: Then multiply all the prime factors GCF(28, 90, 57, 169) = 1.