Greatest Common Factor of 640, 123, 742

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

• Greatest Common Factor of 640, 123, 742 by common division method
• Greatest Common Factor of 640, 123, 742 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 640

List of positive integer factors of 640 that divides 640 without a remainder.

1,2,4,5,8,10,16,20,32,40,64,80,128,160,320,640

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Factors of 742

List of positive integer factors of 742 that divides 742 without a remainder.

1,2,7,14,53,106,371,742

Greatest Common Factor

We found the factors 640,123,742 . The biggest common factor number is the GCF number.
So the greatest common factor 640,123,742 is 1.

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

• GCF of 961, 756, 940
• GCF of 916, 590, 490
• GCF of 904, 990, 663
• GCF of 589, 179, 426
• GCF of 331, 130, 619

1. What is the GCF of 640, 123, 742?

Answer: GCF of 640, 123, 742 is 1.

2. How to Find the GCF of 640, 123, 742

Answer: Greatest Common Factor(GCF) of 640, 123, 742 = 1

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

Step 2: Then multiply all the prime factors GCF(640, 123, 742) = 1.