Greatest Common Factor of 23, 15, 86, 61

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

• Greatest Common Factor of 23, 15, 86, 61 by common division method
• Greatest Common Factor of 23, 15, 86, 61 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 23

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

1,23

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 86

List of positive integer factors of 86 that divides 86 without a remainder.

1,2,43,86

Factors of 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Greatest Common Factor

We found the factors 23,15,86,61 . The biggest common factor number is the GCF number.
So the greatest common factor 23,15,86,61 is 1.

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

• GCF of 12, 78, 49, 50
• GCF of 53, 93, 16, 65
• GCF of 85, 56, 55, 82
• GCF of 64, 56, 68, 63
• GCF of 71, 94, 20, 97

1. What is the GCF of 23, 15, 86, 61?

Answer: GCF of 23, 15, 86, 61 is 1.

2. How to Find the GCF of 23, 15, 86, 61

Answer: Greatest Common Factor(GCF) of 23, 15, 86, 61 = 1

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

Step 2: Then multiply all the prime factors GCF(23, 15, 86, 61) = 1.