Greatest Common Factor of 78, 45, 41, 21

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

• Greatest Common Factor of 78, 45, 41, 21 by common division method
• Greatest Common Factor of 78, 45, 41, 21 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 78

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

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

Factors of 45

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

1,3,5,9,15,45

Factors of 41

List of positive integer factors of 41 that divides 41 without a remainder.

1,41

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 78,45,41,21 . The biggest common factor number is the GCF number.
So the greatest common factor 78,45,41,21 is 1.

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

• GCF of 41, 72, 87, 48
• GCF of 68, 38, 19, 80
• GCF of 86, 87, 75, 30
• GCF of 55, 17, 26, 59
• GCF of 27, 53, 82, 70

1. What is the GCF of 78, 45, 41, 21?

Answer: GCF of 78, 45, 41, 21 is 1.

2. How to Find the GCF of 78, 45, 41, 21

Answer: Greatest Common Factor(GCF) of 78, 45, 41, 21 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 45, 41, 21) = 1.