Greatest Common Factor of 15, 61, 36, 65

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

• Greatest Common Factor of 15, 61, 36, 65 by common division method
• Greatest Common Factor of 15, 61, 36, 65 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 15

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

1,3,5,15

Factors of 61

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

1,61

Factors of 36

List of positive integer factors of 36 that divides 36 without a remainder.

1,2,3,4,6,9,12,18,36

Factors of 65

List of positive integer factors of 65 that divides 65 without a remainder.

1,5,13,65

Greatest Common Factor

We found the factors 15,61,36,65 . The biggest common factor number is the GCF number.
So the greatest common factor 15,61,36,65 is 1.

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

• GCF of 87, 61, 62, 90
• GCF of 31, 60, 79, 92
• GCF of 93, 60, 51, 45
• GCF of 19, 97, 87, 85
• GCF of 57, 52, 27, 49

1. What is the GCF of 15, 61, 36, 65?

Answer: GCF of 15, 61, 36, 65 is 1.

2. How to Find the GCF of 15, 61, 36, 65

Answer: Greatest Common Factor(GCF) of 15, 61, 36, 65 = 1

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

Step 2: Then multiply all the prime factors GCF(15, 61, 36, 65) = 1.