Greatest Common Factor of 21, 87, 97, 177

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

• Greatest Common Factor of 21, 87, 97, 177 by common division method
• Greatest Common Factor of 21, 87, 97, 177 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 87

List of positive integer factors of 87 that divides 87 without a remainder.

1,3,29,87

Factors of 97

List of positive integer factors of 97 that divides 97 without a remainder.

1,97

Factors of 177

List of positive integer factors of 177 that divides 177 without a remainder.

1,3,59,177

Greatest Common Factor

We found the factors 21,87,97,177 . The biggest common factor number is the GCF number.
So the greatest common factor 21,87,97,177 is 1.

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

• GCF of 62, 73, 47, 405
• GCF of 49, 15, 16, 175
• GCF of 20, 18, 50, 639
• GCF of 88, 69, 39, 372
• GCF of 84, 46, 49, 911

1. What is the GCF of 21, 87, 97, 177?

Answer: GCF of 21, 87, 97, 177 is 1.

2. How to Find the GCF of 21, 87, 97, 177

Answer: Greatest Common Factor(GCF) of 21, 87, 97, 177 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 87, 97, 177) = 1.