Greatest Common Factor of 21, 74, 75, 658

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

• Greatest Common Factor of 21, 74, 75, 658 by common division method
• Greatest Common Factor of 21, 74, 75, 658 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 74

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

1,2,37,74

Factors of 75

List of positive integer factors of 75 that divides 75 without a remainder.

1,3,5,15,25,75

Factors of 658

List of positive integer factors of 658 that divides 658 without a remainder.

1,2,7,14,47,94,329,658

Greatest Common Factor

We found the factors 21,74,75,658 . The biggest common factor number is the GCF number.
So the greatest common factor 21,74,75,658 is 1.

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

• GCF of 14, 81, 23, 425
• GCF of 33, 40, 76, 865
• GCF of 84, 42, 27, 899
• GCF of 27, 95, 13, 472
• GCF of 43, 92, 91, 438

1. What is the GCF of 21, 74, 75, 658?

Answer: GCF of 21, 74, 75, 658 is 1.

2. How to Find the GCF of 21, 74, 75, 658

Answer: Greatest Common Factor(GCF) of 21, 74, 75, 658 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 74, 75, 658) = 1.