Greatest Common Factor of 991, 689, 217

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

• Greatest Common Factor of 991, 689, 217 by common division method
• Greatest Common Factor of 991, 689, 217 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 991

List of positive integer factors of 991 that divides 991 without a remainder.

1,991

Factors of 689

List of positive integer factors of 689 that divides 689 without a remainder.

1,13,53,689

Factors of 217

List of positive integer factors of 217 that divides 217 without a remainder.

1,7,31,217

Greatest Common Factor

We found the factors 991,689,217 . The biggest common factor number is the GCF number.
So the greatest common factor 991,689,217 is 1.

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

• GCF of 289, 839, 414
• GCF of 929, 422, 224
• GCF of 678, 757, 673
• GCF of 272, 786, 726
• GCF of 531, 187, 895

1. What is the GCF of 991, 689, 217?

Answer: GCF of 991, 689, 217 is 1.

2. How to Find the GCF of 991, 689, 217

Answer: Greatest Common Factor(GCF) of 991, 689, 217 = 1

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

Step 2: Then multiply all the prime factors GCF(991, 689, 217) = 1.