Greatest Common Factor of 642, 120, 215

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

• Greatest Common Factor of 642, 120, 215 by common division method
• Greatest Common Factor of 642, 120, 215 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 120

List of positive integer factors of 120 that divides 120 without a remainder.

1,2,3,4,5,6,8,10,12,15,20,24,30,40,60,120

Factors of 215

List of positive integer factors of 215 that divides 215 without a remainder.

1,5,43,215

Greatest Common Factor

We found the factors 642,120,215 . The biggest common factor number is the GCF number.
So the greatest common factor 642,120,215 is 1.

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

• GCF of 986, 286, 627
• GCF of 208, 955, 806
• GCF of 270, 733, 511
• GCF of 238, 208, 527
• GCF of 302, 350, 603

1. What is the GCF of 642, 120, 215?

Answer: GCF of 642, 120, 215 is 1.

2. How to Find the GCF of 642, 120, 215

Answer: Greatest Common Factor(GCF) of 642, 120, 215 = 1

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

Step 2: Then multiply all the prime factors GCF(642, 120, 215) = 1.