Greatest Common Factor of 420, 161, 830

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

• Greatest Common Factor of 420, 161, 830 by common division method
• Greatest Common Factor of 420, 161, 830 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 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 161

List of positive integer factors of 161 that divides 161 without a remainder.

1,7,23,161

Factors of 830

List of positive integer factors of 830 that divides 830 without a remainder.

1,2,5,10,83,166,415,830

Greatest Common Factor

We found the factors 420,161,830 . The biggest common factor number is the GCF number.
So the greatest common factor 420,161,830 is 1.

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

• GCF of 607, 595, 778
• GCF of 545, 263, 206
• GCF of 350, 203, 683
• GCF of 496, 724, 337
• GCF of 237, 413, 909

1. What is the GCF of 420, 161, 830?

Answer: GCF of 420, 161, 830 is 1.

2. How to Find the GCF of 420, 161, 830

Answer: Greatest Common Factor(GCF) of 420, 161, 830 = 1

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

Step 2: Then multiply all the prime factors GCF(420, 161, 830) = 1.