Greatest Common Factor of 61, 89, 21, 298

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

• Greatest Common Factor of 61, 89, 21, 298 by common division method
• Greatest Common Factor of 61, 89, 21, 298 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 61

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

1,61

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 298

List of positive integer factors of 298 that divides 298 without a remainder.

1,2,149,298

Greatest Common Factor

We found the factors 61,89,21,298 . The biggest common factor number is the GCF number.
So the greatest common factor 61,89,21,298 is 1.

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

• GCF of 17, 53, 41, 194
• GCF of 81, 77, 45, 162
• GCF of 48, 53, 75, 364
• GCF of 75, 86, 88, 201
• GCF of 17, 12, 10, 994

1. What is the GCF of 61, 89, 21, 298?

Answer: GCF of 61, 89, 21, 298 is 1.

2. How to Find the GCF of 61, 89, 21, 298

Answer: Greatest Common Factor(GCF) of 61, 89, 21, 298 = 1

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

Step 2: Then multiply all the prime factors GCF(61, 89, 21, 298) = 1.