Greatest Common Factor of 21, 58, 87, 997

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

• Greatest Common Factor of 21, 58, 87, 997 by common division method
• Greatest Common Factor of 21, 58, 87, 997 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 58

List of positive integer factors of 58 that divides 58 without a remainder.

1,2,29,58

Factors of 87

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

1,3,29,87

Factors of 997

List of positive integer factors of 997 that divides 997 without a remainder.

1,997

Greatest Common Factor

We found the factors 21,58,87,997 . The biggest common factor number is the GCF number.
So the greatest common factor 21,58,87,997 is 1.

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

• GCF of 58, 14, 85, 625
• GCF of 40, 39, 17, 507
• GCF of 75, 12, 71, 372
• GCF of 41, 82, 38, 858
• GCF of 89, 71, 59, 906

1. What is the GCF of 21, 58, 87, 997?

Answer: GCF of 21, 58, 87, 997 is 1.

2. How to Find the GCF of 21, 58, 87, 997

Answer: Greatest Common Factor(GCF) of 21, 58, 87, 997 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 58, 87, 997) = 1.