Greatest Common Factor of 21, 4945

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

• Greatest Common Factor of 21, 4945 by common division method
• Greatest Common Factor of 21, 4945 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 21

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

1,3,7,21

Factors of 4945

List of positive integer factors of 4945 that divides 4945 without a remainder.

1,5,23,43,115,215,989,4945

Greatest Common Factor

We found the factors 21,4945 . The biggest common factor number is the GCF number.
So the greatest common factor 21,4945 is 1.

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

• GCF of 78, 5878
• GCF of 72, 9199
• GCF of 46, 3398
• GCF of 18, 1027
• GCF of 92, 5410

1. What is the GCF of 21, 4945?

Answer: GCF of 21, 4945 is 1.

2. How to Find the GCF of 21, 4945

Answer: Greatest Common Factor(GCF) of 21, 4945 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 4945) = 1.