Greatest Common Factor of 87, 20, 402, 491

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

• Greatest Common Factor of 87, 20, 402, 491 by common division method
• Greatest Common Factor of 87, 20, 402, 491 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 402

List of positive integer factors of 402 that divides 402 without a remainder.

1,2,3,6,67,134,201,402

Factors of 491

List of positive integer factors of 491 that divides 491 without a remainder.

1,491

Greatest Common Factor

We found the factors 87,20,402,491 . The biggest common factor number is the GCF number.
So the greatest common factor 87,20,402,491 is 1.

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

• GCF of 78, 16, 430, 872
• GCF of 98, 29, 148, 374
• GCF of 37, 44, 747, 165
• GCF of 56, 19, 250, 965
• GCF of 97, 43, 896, 863

1. What is the GCF of 87, 20, 402, 491?

Answer: GCF of 87, 20, 402, 491 is 1.

2. How to Find the GCF of 87, 20, 402, 491

Answer: Greatest Common Factor(GCF) of 87, 20, 402, 491 = 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, 402, 491) = 1.