Greatest Common Factor of 76, 17, 21, 170

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

• Greatest Common Factor of 76, 17, 21, 170 by common division method
• Greatest Common Factor of 76, 17, 21, 170 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 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

Factors of 17

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

1,17

Factors of 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 170

List of positive integer factors of 170 that divides 170 without a remainder.

1,2,5,10,17,34,85,170

Greatest Common Factor

We found the factors 76,17,21,170 . The biggest common factor number is the GCF number.
So the greatest common factor 76,17,21,170 is 1.

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

• GCF of 76, 31, 16, 971
• GCF of 26, 77, 59, 164
• GCF of 11, 35, 90, 865
• GCF of 23, 74, 27, 713
• GCF of 77, 53, 13, 477

1. What is the GCF of 76, 17, 21, 170?

Answer: GCF of 76, 17, 21, 170 is 1.

2. How to Find the GCF of 76, 17, 21, 170

Answer: Greatest Common Factor(GCF) of 76, 17, 21, 170 = 1

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

Step 2: Then multiply all the prime factors GCF(76, 17, 21, 170) = 1.