Greatest Common Factor of 870, 15, 397, 342

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

• Greatest Common Factor of 870, 15, 397, 342 by common division method
• Greatest Common Factor of 870, 15, 397, 342 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 870

List of positive integer factors of 870 that divides 870 without a remainder.

1,2,3,5,6,10,15,29,30,58,87,145,174,290,435,870

Factors of 15

List of positive integer factors of 15 that divides 15 without a remainder.

1,3,5,15

Factors of 397

List of positive integer factors of 397 that divides 397 without a remainder.

1,397

Factors of 342

List of positive integer factors of 342 that divides 342 without a remainder.

1,2,3,6,9,18,19,38,57,114,171,342

Greatest Common Factor

We found the factors 870,15,397,342 . The biggest common factor number is the GCF number.
So the greatest common factor 870,15,397,342 is 1.

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

• GCF of 687, 71, 841, 195
• GCF of 627, 19, 861, 419
• GCF of 474, 75, 679, 144
• GCF of 419, 34, 674, 841
• GCF of 434, 73, 617, 302

1. What is the GCF of 870, 15, 397, 342?

Answer: GCF of 870, 15, 397, 342 is 1.

2. How to Find the GCF of 870, 15, 397, 342

Answer: Greatest Common Factor(GCF) of 870, 15, 397, 342 = 1

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

Step 2: Then multiply all the prime factors GCF(870, 15, 397, 342) = 1.