Greatest Common Factor of 642, 139, 138, 242, 662

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

• Greatest Common Factor of 642, 139, 138, 242, 662 by common division method
• Greatest Common Factor of 642, 139, 138, 242, 662 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 139

List of positive integer factors of 139 that divides 139 without a remainder.

1,139

Factors of 138

List of positive integer factors of 138 that divides 138 without a remainder.

1,2,3,6,23,46,69,138

Factors of 242

List of positive integer factors of 242 that divides 242 without a remainder.

1,2,11,22,121,242

Factors of 662

List of positive integer factors of 662 that divides 662 without a remainder.

1,2,331,662

Greatest Common Factor

We found the factors 642,139,138,242,662 . The biggest common factor number is the GCF number.
So the greatest common factor 642,139,138,242,662 is 1.

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

• GCF of 539, 935, 614, 927, 243
• GCF of 813, 387, 843, 857, 850
• GCF of 682, 180, 366, 592, 594
• GCF of 174, 658, 554, 357, 588
• GCF of 562, 544, 728, 343, 871

1. What is the GCF of 642, 139, 138, 242, 662?

Answer: GCF of 642, 139, 138, 242, 662 is 1.

2. How to Find the GCF of 642, 139, 138, 242, 662

Answer: Greatest Common Factor(GCF) of 642, 139, 138, 242, 662 = 1

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

Step 2: Then multiply all the prime factors GCF(642, 139, 138, 242, 662) = 1.