Greatest Common Factor of 561, 140, 531, 123

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

• Greatest Common Factor of 561, 140, 531, 123 by common division method
• Greatest Common Factor of 561, 140, 531, 123 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 140

List of positive integer factors of 140 that divides 140 without a remainder.

1,2,4,5,7,10,14,20,28,35,70,140

Factors of 531

List of positive integer factors of 531 that divides 531 without a remainder.

1,3,9,59,177,531

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Greatest Common Factor

We found the factors 561,140,531,123 . The biggest common factor number is the GCF number.
So the greatest common factor 561,140,531,123 is 1.

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

• GCF of 857, 778, 188, 192
• GCF of 233, 902, 176, 640
• GCF of 294, 500, 180, 411
• GCF of 437, 769, 849, 311
• GCF of 940, 136, 413, 135

1. What is the GCF of 561, 140, 531, 123?

Answer: GCF of 561, 140, 531, 123 is 1.

2. How to Find the GCF of 561, 140, 531, 123

Answer: Greatest Common Factor(GCF) of 561, 140, 531, 123 = 1

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

Step 2: Then multiply all the prime factors GCF(561, 140, 531, 123) = 1.