Greatest Common Factor of 785, 661, 20

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

• Greatest Common Factor of 785, 661, 20 by common division method
• Greatest Common Factor of 785, 661, 20 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 785

List of positive integer factors of 785 that divides 785 without a remainder.

1,5,157,785

Factors of 661

List of positive integer factors of 661 that divides 661 without a remainder.

1,661

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Greatest Common Factor

We found the factors 785,661,20 . The biggest common factor number is the GCF number.
So the greatest common factor 785,661,20 is 1.

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

• GCF of 344, 150, 94
• GCF of 650, 350, 99
• GCF of 499, 102, 70
• GCF of 691, 405, 61
• GCF of 362, 820, 68

1. What is the GCF of 785, 661, 20?

Answer: GCF of 785, 661, 20 is 1.

2. How to Find the GCF of 785, 661, 20

Answer: Greatest Common Factor(GCF) of 785, 661, 20 = 1

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

Step 2: Then multiply all the prime factors GCF(785, 661, 20) = 1.