Greatest Common Factor of 17, 70, 61, 399

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

• Greatest Common Factor of 17, 70, 61, 399 by common division method
• Greatest Common Factor of 17, 70, 61, 399 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 17

List of positive integer factors of 17 that divides 17 without a remainder.

1,17

Factors of 70

List of positive integer factors of 70 that divides 70 without a remainder.

1,2,5,7,10,14,35,70

Factors of 61

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

1,61

Factors of 399

List of positive integer factors of 399 that divides 399 without a remainder.

1,3,7,19,21,57,133,399

Greatest Common Factor

We found the factors 17,70,61,399 . The biggest common factor number is the GCF number.
So the greatest common factor 17,70,61,399 is 1.

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

• GCF of 83, 24, 35, 777
• GCF of 13, 99, 14, 105
• GCF of 41, 68, 36, 815
• GCF of 99, 57, 90, 911
• GCF of 69, 13, 62, 845

1. What is the GCF of 17, 70, 61, 399?

Answer: GCF of 17, 70, 61, 399 is 1.

2. How to Find the GCF of 17, 70, 61, 399

Answer: Greatest Common Factor(GCF) of 17, 70, 61, 399 = 1

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

Step 2: Then multiply all the prime factors GCF(17, 70, 61, 399) = 1.