Greatest Common Factor of 642, 550, 18

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

• Greatest Common Factor of 642, 550, 18 by common division method
• Greatest Common Factor of 642, 550, 18 with matching the biggest common factor

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∴ So the GCF of the given numbers is 2 = 2

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 550

List of positive integer factors of 550 that divides 550 without a remainder.

1,2,5,10,11,22,25,50,55,110,275,550

Factors of 18

List of positive integer factors of 18 that divides 18 without a remainder.

1,2,3,6,9,18

Greatest Common Factor

We found the factors 642,550,18 . The biggest common factor number is the GCF number.
So the greatest common factor 642,550,18 is 2.

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

• GCF of 491, 769, 55
• GCF of 934, 114, 40
• GCF of 290, 877, 37
• GCF of 861, 833, 72
• GCF of 747, 184, 98

1. What is the GCF of 642, 550, 18?

Answer: GCF of 642, 550, 18 is 2.

2. How to Find the GCF of 642, 550, 18

Answer: Greatest Common Factor(GCF) of 642, 550, 18 = 2

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

Step 2: Then multiply all the prime factors GCF(642, 550, 18) = 2.