Greatest Common Factor of 428, 400, 645

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

• Greatest Common Factor of 428, 400, 645 by common division method
• Greatest Common Factor of 428, 400, 645 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 428

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

1,2,4,107,214,428

Factors of 400

List of positive integer factors of 400 that divides 400 without a remainder.

1,2,4,5,8,10,16,20,25,40,50,80,100,200,400

Factors of 645

List of positive integer factors of 645 that divides 645 without a remainder.

1,3,5,15,43,129,215,645

Greatest Common Factor

We found the factors 428,400,645 . The biggest common factor number is the GCF number.
So the greatest common factor 428,400,645 is 1.

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

• GCF of 273, 528, 387
• GCF of 751, 963, 488
• GCF of 780, 989, 379
• GCF of 659, 262, 550
• GCF of 855, 518, 279

1. What is the GCF of 428, 400, 645?

Answer: GCF of 428, 400, 645 is 1.

2. How to Find the GCF of 428, 400, 645

Answer: Greatest Common Factor(GCF) of 428, 400, 645 = 1

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

Step 2: Then multiply all the prime factors GCF(428, 400, 645) = 1.