Greatest Common Factor of 45, 98, 12, 280

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

• Greatest Common Factor of 45, 98, 12, 280 by common division method
• Greatest Common Factor of 45, 98, 12, 280 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 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 98

List of positive integer factors of 98 that divides 98 without a remainder.

1,2,7,14,49,98

Factors of 12

List of positive integer factors of 12 that divides 12 without a remainder.

1,2,3,4,6,12

Factors of 280

List of positive integer factors of 280 that divides 280 without a remainder.

1,2,4,5,7,8,10,14,20,28,35,40,56,70,140,280

Greatest Common Factor

We found the factors 45,98,12,280 . The biggest common factor number is the GCF number.
So the greatest common factor 45,98,12,280 is 1.

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

• GCF of 67, 17, 51, 560
• GCF of 86, 14, 44, 570
• GCF of 96, 39, 47, 339
• GCF of 91, 80, 63, 132
• GCF of 60, 51, 56, 630

1. What is the GCF of 45, 98, 12, 280?

Answer: GCF of 45, 98, 12, 280 is 1.

2. How to Find the GCF of 45, 98, 12, 280

Answer: Greatest Common Factor(GCF) of 45, 98, 12, 280 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 98, 12, 280) = 1.