Greatest Common Factor of 688, 991, 12

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

• Greatest Common Factor of 688, 991, 12 by common division method
• Greatest Common Factor of 688, 991, 12 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 688

List of positive integer factors of 688 that divides 688 without a remainder.

1,2,4,8,16,43,86,172,344,688

Factors of 991

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

1,991

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Greatest Common Factor

We found the factors 688,991,12 . The biggest common factor number is the GCF number.
So the greatest common factor 688,991,12 is 1.

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

• GCF of 558, 105, 40
• GCF of 711, 883, 43
• GCF of 915, 880, 21
• GCF of 405, 362, 43
• GCF of 318, 804, 47

1. What is the GCF of 688, 991, 12?

Answer: GCF of 688, 991, 12 is 1.

2. How to Find the GCF of 688, 991, 12

Answer: Greatest Common Factor(GCF) of 688, 991, 12 = 1

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

Step 2: Then multiply all the prime factors GCF(688, 991, 12) = 1.