Greatest Common Factor of 45, 61, 78

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

• Greatest Common Factor of 45, 61, 78 by common division method
• Greatest Common Factor of 45, 61, 78 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 45

List of positive integer factors of 45 that divides 45 without a remainder.

1,3,5,9,15,45

Factors of 61

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

1,61

Factors of 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Greatest Common Factor

We found the factors 45,61,78 . The biggest common factor number is the GCF number.
So the greatest common factor 45,61,78 is 1.

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

• GCF of 30, 63, 10
• GCF of 68, 13, 64
• GCF of 42, 21, 24
• GCF of 73, 27, 97
• GCF of 96, 75, 57

1. What is the GCF of 45, 61, 78?

Answer: GCF of 45, 61, 78 is 1.

2. How to Find the GCF of 45, 61, 78

Answer: Greatest Common Factor(GCF) of 45, 61, 78 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 61, 78) = 1.