Greatest Common Factor of 87, 20, 42, 577

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

• Greatest Common Factor of 87, 20, 42, 577 by common division method
• Greatest Common Factor of 87, 20, 42, 577 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 87

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

1,3,29,87

Factors of 20

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

1,2,4,5,10,20

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 577

List of positive integer factors of 577 that divides 577 without a remainder.

1,577

Greatest Common Factor

We found the factors 87,20,42,577 . The biggest common factor number is the GCF number.
So the greatest common factor 87,20,42,577 is 1.

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

• GCF of 81, 72, 76, 481
• GCF of 63, 70, 65, 874
• GCF of 81, 56, 43, 924
• GCF of 41, 98, 54, 778
• GCF of 80, 68, 69, 105

1. What is the GCF of 87, 20, 42, 577?

Answer: GCF of 87, 20, 42, 577 is 1.

2. How to Find the GCF of 87, 20, 42, 577

Answer: Greatest Common Factor(GCF) of 87, 20, 42, 577 = 1

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

Step 2: Then multiply all the prime factors GCF(87, 20, 42, 577) = 1.