Greatest Common Factor of 20, 98, 77, 78, 223

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

• Greatest Common Factor of 20, 98, 77, 78, 223 by common division method
• Greatest Common Factor of 20, 98, 77, 78, 223 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 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 98

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

1,2,7,14,49,98

Factors of 77

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

1,7,11,77

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 223

List of positive integer factors of 223 that divides 223 without a remainder.

1,223

Greatest Common Factor

We found the factors 20,98,77,78,223 . The biggest common factor number is the GCF number.
So the greatest common factor 20,98,77,78,223 is 1.

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

• GCF of 49, 60, 85, 16, 514
• GCF of 17, 30, 97, 24, 285
• GCF of 96, 44, 72, 87, 542
• GCF of 12, 52, 22, 61, 669
• GCF of 69, 71, 90, 60, 949

1. What is the GCF of 20, 98, 77, 78, 223?

Answer: GCF of 20, 98, 77, 78, 223 is 1.

2. How to Find the GCF of 20, 98, 77, 78, 223

Answer: Greatest Common Factor(GCF) of 20, 98, 77, 78, 223 = 1

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

Step 2: Then multiply all the prime factors GCF(20, 98, 77, 78, 223) = 1.