Greatest Common Factor of 70, 43, 90, 81

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

• Greatest Common Factor of 70, 43, 90, 81 by common division method
• Greatest Common Factor of 70, 43, 90, 81 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 43

List of positive integer factors of 43 that divides 43 without a remainder.

1,43

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 81

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

1,3,9,27,81

Greatest Common Factor

We found the factors 70,43,90,81 . The biggest common factor number is the GCF number.
So the greatest common factor 70,43,90,81 is 1.

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

• GCF of 60, 45, 65, 47
• GCF of 35, 10, 25, 35
• GCF of 23, 49, 95, 89
• GCF of 91, 52, 63, 40
• GCF of 51, 66, 30, 36

1. What is the GCF of 70, 43, 90, 81?

Answer: GCF of 70, 43, 90, 81 is 1.

2. How to Find the GCF of 70, 43, 90, 81

Answer: Greatest Common Factor(GCF) of 70, 43, 90, 81 = 1

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

Step 2: Then multiply all the prime factors GCF(70, 43, 90, 81) = 1.