Greatest Common Factor of 68, 21, 74, 355

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

• Greatest Common Factor of 68, 21, 74, 355 by common division method
• Greatest Common Factor of 68, 21, 74, 355 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 68

List of positive integer factors of 68 that divides 68 without a remainder.

1,2,4,17,34,68

Factors of 21

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

1,3,7,21

Factors of 74

List of positive integer factors of 74 that divides 74 without a remainder.

1,2,37,74

Factors of 355

List of positive integer factors of 355 that divides 355 without a remainder.

1,5,71,355

Greatest Common Factor

We found the factors 68,21,74,355 . The biggest common factor number is the GCF number.
So the greatest common factor 68,21,74,355 is 1.

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

• GCF of 86, 23, 68, 108
• GCF of 40, 27, 19, 691
• GCF of 66, 65, 23, 287
• GCF of 24, 22, 50, 141
• GCF of 85, 23, 11, 734

1. What is the GCF of 68, 21, 74, 355?

Answer: GCF of 68, 21, 74, 355 is 1.

2. How to Find the GCF of 68, 21, 74, 355

Answer: Greatest Common Factor(GCF) of 68, 21, 74, 355 = 1

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

Step 2: Then multiply all the prime factors GCF(68, 21, 74, 355) = 1.