Greatest Common Factor of 538, 642, 15

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

• Greatest Common Factor of 538, 642, 15 by common division method
• Greatest Common Factor of 538, 642, 15 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 538

List of positive integer factors of 538 that divides 538 without a remainder.

1,2,269,538

Factors of 642

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

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

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Greatest Common Factor

We found the factors 538,642,15 . The biggest common factor number is the GCF number.
So the greatest common factor 538,642,15 is 1.

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

• GCF of 236, 887, 91
• GCF of 928, 548, 58
• GCF of 541, 861, 17
• GCF of 314, 640, 72
• GCF of 934, 165, 76

1. What is the GCF of 538, 642, 15?

Answer: GCF of 538, 642, 15 is 1.

2. How to Find the GCF of 538, 642, 15

Answer: Greatest Common Factor(GCF) of 538, 642, 15 = 1

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

Step 2: Then multiply all the prime factors GCF(538, 642, 15) = 1.