Greatest Common Factor of 645, 144, 980, 12

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

• Greatest Common Factor of 645, 144, 980, 12 by common division method
• Greatest Common Factor of 645, 144, 980, 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 645

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

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

Factors of 144

List of positive integer factors of 144 that divides 144 without a remainder.

1,2,3,4,6,8,9,12,16,18,24,36,48,72,144

Factors of 980

List of positive integer factors of 980 that divides 980 without a remainder.

1,2,4,5,7,10,14,20,28,35,49,70,98,140,196,245,490,980

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 645,144,980,12 . The biggest common factor number is the GCF number.
So the greatest common factor 645,144,980,12 is 1.

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

• GCF of 329, 333, 320, 84
• GCF of 923, 438, 372, 72
• GCF of 261, 144, 389, 71
• GCF of 366, 732, 136, 25
• GCF of 988, 272, 360, 28

1. What is the GCF of 645, 144, 980, 12?

Answer: GCF of 645, 144, 980, 12 is 1.

2. How to Find the GCF of 645, 144, 980, 12

Answer: Greatest Common Factor(GCF) of 645, 144, 980, 12 = 1

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

Step 2: Then multiply all the prime factors GCF(645, 144, 980, 12) = 1.