Greatest Common Factor of 561, 507, 172

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

• Greatest Common Factor of 561, 507, 172 by common division method
• Greatest Common Factor of 561, 507, 172 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 561

List of positive integer factors of 561 that divides 561 without a remainder.

1,3,11,17,33,51,187,561

Factors of 507

List of positive integer factors of 507 that divides 507 without a remainder.

1,3,13,39,169,507

Factors of 172

List of positive integer factors of 172 that divides 172 without a remainder.

1,2,4,43,86,172

Greatest Common Factor

We found the factors 561,507,172 . The biggest common factor number is the GCF number.
So the greatest common factor 561,507,172 is 1.

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

• GCF of 868, 619, 578
• GCF of 657, 994, 931
• GCF of 342, 526, 913
• GCF of 842, 617, 270
• GCF of 164, 248, 840

1. What is the GCF of 561, 507, 172?

Answer: GCF of 561, 507, 172 is 1.

2. How to Find the GCF of 561, 507, 172

Answer: Greatest Common Factor(GCF) of 561, 507, 172 = 1

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

Step 2: Then multiply all the prime factors GCF(561, 507, 172) = 1.