Greatest Common Factor of 45, 38, 91, 77

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

• Greatest Common Factor of 45, 38, 91, 77 by common division method
• Greatest Common Factor of 45, 38, 91, 77 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 45

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

1,3,5,9,15,45

Factors of 38

List of positive integer factors of 38 that divides 38 without a remainder.

1,2,19,38

Factors of 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Greatest Common Factor

We found the factors 45,38,91,77 . The biggest common factor number is the GCF number.
So the greatest common factor 45,38,91,77 is 1.

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

• GCF of 57, 91, 66, 61
• GCF of 94, 98, 55, 53
• GCF of 83, 54, 61, 29
• GCF of 55, 33, 69, 41
• GCF of 16, 29, 48, 69

1. What is the GCF of 45, 38, 91, 77?

Answer: GCF of 45, 38, 91, 77 is 1.

2. How to Find the GCF of 45, 38, 91, 77

Answer: Greatest Common Factor(GCF) of 45, 38, 91, 77 = 1

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

Step 2: Then multiply all the prime factors GCF(45, 38, 91, 77) = 1.