Greatest Common Factor of 57, 90, 23, 31

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

• Greatest Common Factor of 57, 90, 23, 31 by common division method
• Greatest Common Factor of 57, 90, 23, 31 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 57

List of positive integer factors of 57 that divides 57 without a remainder.

1,3,19,57

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 23

List of positive integer factors of 23 that divides 23 without a remainder.

1,23

Factors of 31

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

1,31

Greatest Common Factor

We found the factors 57,90,23,31 . The biggest common factor number is the GCF number.
So the greatest common factor 57,90,23,31 is 1.

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

• GCF of 46, 65, 58, 15
• GCF of 74, 90, 55, 61
• GCF of 41, 10, 34, 53
• GCF of 59, 87, 63, 46
• GCF of 57, 19, 89, 12

1. What is the GCF of 57, 90, 23, 31?

Answer: GCF of 57, 90, 23, 31 is 1.

2. How to Find the GCF of 57, 90, 23, 31

Answer: Greatest Common Factor(GCF) of 57, 90, 23, 31 = 1

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

Step 2: Then multiply all the prime factors GCF(57, 90, 23, 31) = 1.