Greatest Common Factor of 70, 81, 12, 99

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

• Greatest Common Factor of 70, 81, 12, 99 by common division method
• Greatest Common Factor of 70, 81, 12, 99 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 70

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

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

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 12

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

1,2,3,4,6,12

Factors of 99

List of positive integer factors of 99 that divides 99 without a remainder.

1,3,9,11,33,99

Greatest Common Factor

We found the factors 70,81,12,99 . The biggest common factor number is the GCF number.
So the greatest common factor 70,81,12,99 is 1.

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

• GCF of 24, 77, 24, 64
• GCF of 43, 34, 32, 66
• GCF of 17, 46, 69, 40
• GCF of 57, 65, 72, 28
• GCF of 19, 40, 37, 67

1. What is the GCF of 70, 81, 12, 99?

Answer: GCF of 70, 81, 12, 99 is 1.

2. How to Find the GCF of 70, 81, 12, 99

Answer: Greatest Common Factor(GCF) of 70, 81, 12, 99 = 1

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

Step 2: Then multiply all the prime factors GCF(70, 81, 12, 99) = 1.