Greatest Common Factor of 768, 21, 328, 428

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

• Greatest Common Factor of 768, 21, 328, 428 by common division method
• Greatest Common Factor of 768, 21, 328, 428 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 768

List of positive integer factors of 768 that divides 768 without a remainder.

1,2,3,4,6,8,12,16,24,32,48,64,96,128,192,256,384,768

Factors of 21

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

1,3,7,21

Factors of 328

List of positive integer factors of 328 that divides 328 without a remainder.

1,2,4,8,41,82,164,328

Factors of 428

List of positive integer factors of 428 that divides 428 without a remainder.

1,2,4,107,214,428

Greatest Common Factor

We found the factors 768,21,328,428 . The biggest common factor number is the GCF number.
So the greatest common factor 768,21,328,428 is 1.

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

• GCF of 643, 65, 118, 976
• GCF of 158, 87, 821, 114
• GCF of 413, 82, 759, 595
• GCF of 228, 99, 600, 904
• GCF of 972, 60, 818, 761

1. What is the GCF of 768, 21, 328, 428?

Answer: GCF of 768, 21, 328, 428 is 1.

2. How to Find the GCF of 768, 21, 328, 428

Answer: Greatest Common Factor(GCF) of 768, 21, 328, 428 = 1

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

Step 2: Then multiply all the prime factors GCF(768, 21, 328, 428) = 1.