Greatest Common Factor of 21, 79, 17, 735

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

• Greatest Common Factor of 21, 79, 17, 735 by common division method
• Greatest Common Factor of 21, 79, 17, 735 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 21

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

1,3,7,21

Factors of 79

List of positive integer factors of 79 that divides 79 without a remainder.

1,79

Factors of 17

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

1,17

Factors of 735

List of positive integer factors of 735 that divides 735 without a remainder.

1,3,5,7,15,21,35,49,105,147,245,735

Greatest Common Factor

We found the factors 21,79,17,735 . The biggest common factor number is the GCF number.
So the greatest common factor 21,79,17,735 is 1.

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

• GCF of 50, 13, 20, 367
• GCF of 83, 17, 73, 599
• GCF of 47, 58, 17, 688
• GCF of 44, 68, 78, 911
• GCF of 47, 65, 93, 859

1. What is the GCF of 21, 79, 17, 735?

Answer: GCF of 21, 79, 17, 735 is 1.

2. How to Find the GCF of 21, 79, 17, 735

Answer: Greatest Common Factor(GCF) of 21, 79, 17, 735 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 79, 17, 735) = 1.