Greatest Common Factor of 61, 90, 34, 690

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

• Greatest Common Factor of 61, 90, 34, 690 by common division method
• Greatest Common Factor of 61, 90, 34, 690 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 61

List of positive integer factors of 61 that divides 61 without a remainder.

1,61

Factors of 90

List of positive integer factors of 90 that divides 90 without a remainder.

1,2,3,5,6,9,10,15,18,30,45,90

Factors of 34

List of positive integer factors of 34 that divides 34 without a remainder.

1,2,17,34

Factors of 690

List of positive integer factors of 690 that divides 690 without a remainder.

1,2,3,5,6,10,15,23,30,46,69,115,138,230,345,690

Greatest Common Factor

We found the factors 61,90,34,690 . The biggest common factor number is the GCF number.
So the greatest common factor 61,90,34,690 is 1.

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

• GCF of 57, 87, 99, 379
• GCF of 30, 75, 72, 533
• GCF of 78, 80, 95, 521
• GCF of 45, 14, 92, 186
• GCF of 67, 31, 38, 575

1. What is the GCF of 61, 90, 34, 690?

Answer: GCF of 61, 90, 34, 690 is 1.

2. How to Find the GCF of 61, 90, 34, 690

Answer: Greatest Common Factor(GCF) of 61, 90, 34, 690 = 1

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

Step 2: Then multiply all the prime factors GCF(61, 90, 34, 690) = 1.