Greatest Common Factor of 13, 10, 87, 642

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

• Greatest Common Factor of 13, 10, 87, 642 by common division method
• Greatest Common Factor of 13, 10, 87, 642 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 13

List of positive integer factors of 13 that divides 13 without a remainder.

1,13

Factors of 10

List of positive integer factors of 10 that divides 10 without a remainder.

1,2,5,10

Factors of 87

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

1,3,29,87

Factors of 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Greatest Common Factor

We found the factors 13,10,87,642 . The biggest common factor number is the GCF number.
So the greatest common factor 13,10,87,642 is 1.

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

• GCF of 91, 25, 60, 773
• GCF of 86, 50, 47, 702
• GCF of 38, 71, 29, 304
• GCF of 84, 24, 89, 830
• GCF of 76, 71, 32, 475

1. What is the GCF of 13, 10, 87, 642?

Answer: GCF of 13, 10, 87, 642 is 1.

2. How to Find the GCF of 13, 10, 87, 642

Answer: Greatest Common Factor(GCF) of 13, 10, 87, 642 = 1

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

Step 2: Then multiply all the prime factors GCF(13, 10, 87, 642) = 1.