Greatest Common Factor of 42, 20, 857

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

• Greatest Common Factor of 42, 20, 857 by common division method
• Greatest Common Factor of 42, 20, 857 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ GCF of numbers is 1 because of no common factors present between them.

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 20

List of positive integer factors of 20 that divides 20 without a remainder.

1,2,4,5,10,20

Factors of 857

List of positive integer factors of 857 that divides 857 without a remainder.

1,857

Greatest Common Factor

We found the factors 42,20,857 . The biggest common factor number is the GCF number.
So the greatest common factor 42,20,857 is 1.

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

• GCF of 62, 86, 618
• GCF of 26, 69, 521
• GCF of 95, 55, 312
• GCF of 91, 64, 288
• GCF of 26, 50, 904

1. What is the GCF of 42, 20, 857?

Answer: GCF of 42, 20, 857 is 1.

2. How to Find the GCF of 42, 20, 857

Answer: Greatest Common Factor(GCF) of 42, 20, 857 = 1

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

Step 2: Then multiply all the prime factors GCF(42, 20, 857) = 1.