Greatest Common Factor of 645, 654, 90

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

• Greatest Common Factor of 645, 654, 90 by common division method
• Greatest Common Factor of 645, 654, 90 with matching the biggest common factor

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∴ So the GCF of the given numbers is 3 = 3

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Factors of 654

List of positive integer factors of 654 that divides 654 without a remainder.

1,2,3,6,109,218,327,654

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

Greatest Common Factor

We found the factors 645,654,90 . The biggest common factor number is the GCF number.
So the greatest common factor 645,654,90 is 3.

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

• GCF of 554, 412, 81
• GCF of 333, 733, 70
• GCF of 670, 752, 90
• GCF of 258, 811, 17
• GCF of 952, 560, 33

1. What is the GCF of 645, 654, 90?

Answer: GCF of 645, 654, 90 is 3.

2. How to Find the GCF of 645, 654, 90

Answer: Greatest Common Factor(GCF) of 645, 654, 90 = 3

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

Step 2: Then multiply all the prime factors GCF(645, 654, 90) = 3.