Greatest Common Factor of 221, 390, 137

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

• Greatest Common Factor of 221, 390, 137 by common division method
• Greatest Common Factor of 221, 390, 137 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 221

List of positive integer factors of 221 that divides 221 without a remainder.

1,13,17,221

Factors of 390

List of positive integer factors of 390 that divides 390 without a remainder.

1,2,3,5,6,10,13,15,26,30,39,65,78,130,195,390

Factors of 137

List of positive integer factors of 137 that divides 137 without a remainder.

1,137

Greatest Common Factor

We found the factors 221,390,137 . The biggest common factor number is the GCF number.
So the greatest common factor 221,390,137 is 1.

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

• GCF of 873, 997, 291
• GCF of 648, 754, 436
• GCF of 174, 331, 317
• GCF of 953, 161, 348
• GCF of 759, 118, 241

1. What is the GCF of 221, 390, 137?

Answer: GCF of 221, 390, 137 is 1.

2. How to Find the GCF of 221, 390, 137

Answer: Greatest Common Factor(GCF) of 221, 390, 137 = 1

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

Step 2: Then multiply all the prime factors GCF(221, 390, 137) = 1.