Greatest Common Factor of 71, 21, 657

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

• Greatest Common Factor of 71, 21, 657 by common division method
• Greatest Common Factor of 71, 21, 657 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 71

List of positive integer factors of 71 that divides 71 without a remainder.

1,71

Factors of 21

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

1,3,7,21

Factors of 657

List of positive integer factors of 657 that divides 657 without a remainder.

1,3,9,73,219,657

Greatest Common Factor

We found the factors 71,21,657 . The biggest common factor number is the GCF number.
So the greatest common factor 71,21,657 is 1.

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

• GCF of 23, 20, 196
• GCF of 17, 33, 265
• GCF of 15, 67, 326
• GCF of 33, 25, 926
• GCF of 84, 55, 656

1. What is the GCF of 71, 21, 657?

Answer: GCF of 71, 21, 657 is 1.

2. How to Find the GCF of 71, 21, 657

Answer: Greatest Common Factor(GCF) of 71, 21, 657 = 1

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

Step 2: Then multiply all the prime factors GCF(71, 21, 657) = 1.