Greatest Common Factor of 638, 672, 690

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

• Greatest Common Factor of 638, 672, 690 by common division method
• Greatest Common Factor of 638, 672, 690 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

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 672

List of positive integer factors of 672 that divides 672 without a remainder.

1,2,3,4,6,7,8,12,14,16,21,24,28,32,42,48,56,84,96,112,168,224,336,672

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

Greatest Common Factor

We found the factors 638,672,690 . The biggest common factor number is the GCF number.
So the greatest common factor 638,672,690 is 2.

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

• GCF of 353, 382, 978
• GCF of 588, 759, 238
• GCF of 381, 401, 217
• GCF of 520, 786, 286
• GCF of 402, 828, 595

1. What is the GCF of 638, 672, 690?

Answer: GCF of 638, 672, 690 is 2.

2. How to Find the GCF of 638, 672, 690

Answer: Greatest Common Factor(GCF) of 638, 672, 690 = 2

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

Step 2: Then multiply all the prime factors GCF(638, 672, 690) = 2.