Greatest Common Factor of 31, 89, 70, 90

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

• Greatest Common Factor of 31, 89, 70, 90 by common division method
• Greatest Common Factor of 31, 89, 70, 90 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 31

List of positive integer factors of 31 that divides 31 without a remainder.

1,31

Factors of 89

List of positive integer factors of 89 that divides 89 without a remainder.

1,89

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 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

Greatest Common Factor

We found the factors 31,89,70,90 . The biggest common factor number is the GCF number.
So the greatest common factor 31,89,70,90 is 1.

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

• GCF of 89, 10, 23, 18
• GCF of 73, 68, 20, 24
• GCF of 50, 71, 22, 42
• GCF of 13, 67, 31, 91
• GCF of 32, 89, 52, 53

1. What is the GCF of 31, 89, 70, 90?

Answer: GCF of 31, 89, 70, 90 is 1.

2. How to Find the GCF of 31, 89, 70, 90

Answer: Greatest Common Factor(GCF) of 31, 89, 70, 90 = 1

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

Step 2: Then multiply all the prime factors GCF(31, 89, 70, 90) = 1.