Greatest Common Factor of 72, 49, 70, 91

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

• Greatest Common Factor of 72, 49, 70, 91 by common division method
• Greatest Common Factor of 72, 49, 70, 91 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 72

List of positive integer factors of 72 that divides 72 without a remainder.

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

Factors of 49

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

1,7,49

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 91

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

1,7,13,91

Greatest Common Factor

We found the factors 72,49,70,91 . The biggest common factor number is the GCF number.
So the greatest common factor 72,49,70,91 is 1.

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

• GCF of 57, 89, 60, 99
• GCF of 75, 20, 48, 74
• GCF of 20, 34, 80, 61
• GCF of 44, 65, 63, 58
• GCF of 12, 53, 14, 85

1. What is the GCF of 72, 49, 70, 91?

Answer: GCF of 72, 49, 70, 91 is 1.

2. How to Find the GCF of 72, 49, 70, 91

Answer: Greatest Common Factor(GCF) of 72, 49, 70, 91 = 1

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

Step 2: Then multiply all the prime factors GCF(72, 49, 70, 91) = 1.