Greatest Common Factor of 77, 21, 55, 52, 98

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

• Greatest Common Factor of 77, 21, 55, 52, 98 by common division method
• Greatest Common Factor of 77, 21, 55, 52, 98 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 77

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

1,7,11,77

Factors of 21

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

1,3,7,21

Factors of 55

List of positive integer factors of 55 that divides 55 without a remainder.

1,5,11,55

Factors of 52

List of positive integer factors of 52 that divides 52 without a remainder.

1,2,4,13,26,52

Factors of 98

List of positive integer factors of 98 that divides 98 without a remainder.

1,2,7,14,49,98

Greatest Common Factor

We found the factors 77,21,55,52,98 . The biggest common factor number is the GCF number.
So the greatest common factor 77,21,55,52,98 is 1.

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

• GCF of 36, 68, 89, 99, 82
• GCF of 58, 19, 19, 81, 30
• GCF of 77, 85, 72, 85, 99
• GCF of 97, 21, 27, 78, 16
• GCF of 27, 66, 18, 95, 85

1. What is the GCF of 77, 21, 55, 52, 98?

Answer: GCF of 77, 21, 55, 52, 98 is 1.

2. How to Find the GCF of 77, 21, 55, 52, 98

Answer: Greatest Common Factor(GCF) of 77, 21, 55, 52, 98 = 1

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

Step 2: Then multiply all the prime factors GCF(77, 21, 55, 52, 98) = 1.