Greatest Common Factor of 420, 676, 51

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

• Greatest Common Factor of 420, 676, 51 by common division method
• Greatest Common Factor of 420, 676, 51 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 676

List of positive integer factors of 676 that divides 676 without a remainder.

1,2,4,13,26,52,169,338,676

Factors of 51

List of positive integer factors of 51 that divides 51 without a remainder.

1,3,17,51

Greatest Common Factor

We found the factors 420,676,51 . The biggest common factor number is the GCF number.
So the greatest common factor 420,676,51 is 1.

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

• GCF of 262, 206, 24
• GCF of 186, 221, 33
• GCF of 579, 501, 22
• GCF of 999, 388, 34
• GCF of 188, 328, 68

1. What is the GCF of 420, 676, 51?

Answer: GCF of 420, 676, 51 is 1.

2. How to Find the GCF of 420, 676, 51

Answer: Greatest Common Factor(GCF) of 420, 676, 51 = 1

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

Step 2: Then multiply all the prime factors GCF(420, 676, 51) = 1.