Greatest Common Factor of 290, 138, 561

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

• Greatest Common Factor of 290, 138, 561 by common division method
• Greatest Common Factor of 290, 138, 561 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 290

List of positive integer factors of 290 that divides 290 without a remainder.

1,2,5,10,29,58,145,290

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Factors of 561

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

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

Greatest Common Factor

We found the factors 290,138,561 . The biggest common factor number is the GCF number.
So the greatest common factor 290,138,561 is 1.

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

• GCF of 373, 848, 444
• GCF of 975, 608, 380
• GCF of 691, 444, 924
• GCF of 876, 553, 156
• GCF of 416, 374, 569

1. What is the GCF of 290, 138, 561?

Answer: GCF of 290, 138, 561 is 1.

2. How to Find the GCF of 290, 138, 561

Answer: Greatest Common Factor(GCF) of 290, 138, 561 = 1

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

Step 2: Then multiply all the prime factors GCF(290, 138, 561) = 1.