Greatest Common Factor of 91, 49, 63, 280

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

• Greatest Common Factor of 91, 49, 63, 280 by common division method
• Greatest Common Factor of 91, 49, 63, 280 with matching the biggest common factor

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∴ So the GCF of the given numbers is 7 = 7

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 63

List of positive integer factors of 63 that divides 63 without a remainder.

1,3,7,9,21,63

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 91,49,63,280 . The biggest common factor number is the GCF number.
So the greatest common factor 91,49,63,280 is 7.

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

• GCF of 20, 66, 63, 673
• GCF of 11, 51, 73, 133
• GCF of 75, 71, 44, 747
• GCF of 54, 40, 88, 607
• GCF of 92, 87, 31, 109

1. What is the GCF of 91, 49, 63, 280?

Answer: GCF of 91, 49, 63, 280 is 7.

2. How to Find the GCF of 91, 49, 63, 280

Answer: Greatest Common Factor(GCF) of 91, 49, 63, 280 = 7

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

Step 2: Then multiply all the prime factors GCF(91, 49, 63, 280) = 7.