Greatest Common Factor of 13, 28, 90, 442

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

• Greatest Common Factor of 13, 28, 90, 442 by common division method
• Greatest Common Factor of 13, 28, 90, 442 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

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 442

List of positive integer factors of 442 that divides 442 without a remainder.

1,2,13,17,26,34,221,442

Greatest Common Factor

We found the factors 13,28,90,442 . The biggest common factor number is the GCF number.
So the greatest common factor 13,28,90,442 is 1.

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

• GCF of 27, 98, 78, 546
• GCF of 56, 86, 39, 832
• GCF of 83, 17, 92, 427
• GCF of 37, 71, 17, 676
• GCF of 86, 13, 50, 148

1. What is the GCF of 13, 28, 90, 442?

Answer: GCF of 13, 28, 90, 442 is 1.

2. How to Find the GCF of 13, 28, 90, 442

Answer: Greatest Common Factor(GCF) of 13, 28, 90, 442 = 1

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

Step 2: Then multiply all the prime factors GCF(13, 28, 90, 442) = 1.