Greatest Common Factor of 642, 434, 79, 720

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

• Greatest Common Factor of 642, 434, 79, 720 by common division method
• Greatest Common Factor of 642, 434, 79, 720 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 642

List of positive integer factors of 642 that divides 642 without a remainder.

1,2,3,6,107,214,321,642

Factors of 434

List of positive integer factors of 434 that divides 434 without a remainder.

1,2,7,14,31,62,217,434

Factors of 79

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

1,79

Factors of 720

List of positive integer factors of 720 that divides 720 without a remainder.

1,2,3,4,5,6,8,9,10,12,15,16,18,20,24,30,36,40,45,48,60,72,80,90,120,144,180,240,360,720

Greatest Common Factor

We found the factors 642,434,79,720 . The biggest common factor number is the GCF number.
So the greatest common factor 642,434,79,720 is 1.

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

• GCF of 498, 463, 79, 141
• GCF of 908, 643, 69, 521
• GCF of 699, 832, 61, 352
• GCF of 777, 522, 32, 697
• GCF of 261, 407, 29, 907

1. What is the GCF of 642, 434, 79, 720?

Answer: GCF of 642, 434, 79, 720 is 1.

2. How to Find the GCF of 642, 434, 79, 720

Answer: Greatest Common Factor(GCF) of 642, 434, 79, 720 = 1

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

Step 2: Then multiply all the prime factors GCF(642, 434, 79, 720) = 1.