Greatest Common Factor of 53, 81, 61, 28

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

• Greatest Common Factor of 53, 81, 61, 28 by common division method
• Greatest Common Factor of 53, 81, 61, 28 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 53

List of positive integer factors of 53 that divides 53 without a remainder.

1,53

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 28

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

1,2,4,7,14,28

Greatest Common Factor

We found the factors 53,81,61,28 . The biggest common factor number is the GCF number.
So the greatest common factor 53,81,61,28 is 1.

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

• GCF of 31, 62, 14, 94
• GCF of 91, 93, 72, 87
• GCF of 59, 98, 99, 45
• GCF of 16, 16, 88, 18
• GCF of 23, 29, 29, 93

1. What is the GCF of 53, 81, 61, 28?

Answer: GCF of 53, 81, 61, 28 is 1.

2. How to Find the GCF of 53, 81, 61, 28

Answer: Greatest Common Factor(GCF) of 53, 81, 61, 28 = 1

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

Step 2: Then multiply all the prime factors GCF(53, 81, 61, 28) = 1.