Greatest Common Factor of 638, 690, 689, 800

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

• Greatest Common Factor of 638, 690, 689, 800 by common division method
• Greatest Common Factor of 638, 690, 689, 800 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 638

List of positive integer factors of 638 that divides 638 without a remainder.

1,2,11,22,29,58,319,638

Factors of 690

List of positive integer factors of 690 that divides 690 without a remainder.

1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690

Factors of 689

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

1,13,53,689

Factors of 800

List of positive integer factors of 800 that divides 800 without a remainder.

1,2,4,5,8,10,16,20,25,32,40,50,80,100,160,200,400,800

Greatest Common Factor

We found the factors 638,690,689,800 . The biggest common factor number is the GCF number.
So the greatest common factor 638,690,689,800 is 1.

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

• GCF of 465, 354, 445, 141
• GCF of 666, 478, 673, 482
• GCF of 960, 193, 592, 552
• GCF of 859, 445, 985, 820
• GCF of 657, 755, 331, 457

1. What is the GCF of 638, 690, 689, 800?

Answer: GCF of 638, 690, 689, 800 is 1.

2. How to Find the GCF of 638, 690, 689, 800

Answer: Greatest Common Factor(GCF) of 638, 690, 689, 800 = 1

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

Step 2: Then multiply all the prime factors GCF(638, 690, 689, 800) = 1.