Greatest Common Factor of 68, 90, 689

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

• Greatest Common Factor of 68, 90, 689 by common division method
• Greatest Common Factor of 68, 90, 689 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

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 689

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

1,13,53,689

Greatest Common Factor

We found the factors 68,90,689 . The biggest common factor number is the GCF number.
So the greatest common factor 68,90,689 is 1.

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

• GCF of 77, 11, 558
• GCF of 68, 51, 993
• GCF of 54, 52, 371
• GCF of 13, 79, 835
• GCF of 23, 58, 261

1. What is the GCF of 68, 90, 689?

Answer: GCF of 68, 90, 689 is 1.

2. How to Find the GCF of 68, 90, 689

Answer: Greatest Common Factor(GCF) of 68, 90, 689 = 1

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

Step 2: Then multiply all the prime factors GCF(68, 90, 689) = 1.