Greatest Common Factor of 73, 61, 21, 65

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

• Greatest Common Factor of 73, 61, 21, 65 by common division method
• Greatest Common Factor of 73, 61, 21, 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 73

List of positive integer factors of 73 that divides 73 without a remainder.

1,73

Factors of 61

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

1,61

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

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 73,61,21,65 . The biggest common factor number is the GCF number.
So the greatest common factor 73,61,21,65 is 1.

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

• GCF of 23, 43, 81, 13
• GCF of 30, 16, 68, 19
• GCF of 34, 45, 24, 35
• GCF of 19, 46, 88, 20
• GCF of 39, 53, 99, 28

1. What is the GCF of 73, 61, 21, 65?

Answer: GCF of 73, 61, 21, 65 is 1.

2. How to Find the GCF of 73, 61, 21, 65

Answer: Greatest Common Factor(GCF) of 73, 61, 21, 65 = 1

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

Step 2: Then multiply all the prime factors GCF(73, 61, 21, 65) = 1.