Greatest Common Factor of 399, 197, 155

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

• Greatest Common Factor of 399, 197, 155 by common division method
• Greatest Common Factor of 399, 197, 155 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 399

List of positive integer factors of 399 that divides 399 without a remainder.

1,3,7,19,21,57,133,399

Factors of 197

List of positive integer factors of 197 that divides 197 without a remainder.

1,197

Factors of 155

List of positive integer factors of 155 that divides 155 without a remainder.

1,5,31,155

Greatest Common Factor

We found the factors 399,197,155 . The biggest common factor number is the GCF number.
So the greatest common factor 399,197,155 is 1.

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

• GCF of 637, 160, 302
• GCF of 319, 333, 289
• GCF of 991, 332, 899
• GCF of 888, 245, 991
• GCF of 988, 166, 247

1. What is the GCF of 399, 197, 155?

Answer: GCF of 399, 197, 155 is 1.

2. How to Find the GCF of 399, 197, 155

Answer: Greatest Common Factor(GCF) of 399, 197, 155 = 1

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

Step 2: Then multiply all the prime factors GCF(399, 197, 155) = 1.