Greatest Common Factor of 420, 656, 97, 788

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

• Greatest Common Factor of 420, 656, 97, 788 by common division method
• Greatest Common Factor of 420, 656, 97, 788 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 656

List of positive integer factors of 656 that divides 656 without a remainder.

1,2,4,8,16,41,82,164,328,656

Factors of 97

List of positive integer factors of 97 that divides 97 without a remainder.

1,97

Factors of 788

List of positive integer factors of 788 that divides 788 without a remainder.

1,2,4,197,394,788

Greatest Common Factor

We found the factors 420,656,97,788 . The biggest common factor number is the GCF number.
So the greatest common factor 420,656,97,788 is 1.

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

• GCF of 642, 943, 31, 507
• GCF of 397, 522, 83, 252
• GCF of 499, 791, 52, 340
• GCF of 465, 162, 51, 462
• GCF of 363, 920, 54, 100

1. What is the GCF of 420, 656, 97, 788?

Answer: GCF of 420, 656, 97, 788 is 1.

2. How to Find the GCF of 420, 656, 97, 788

Answer: Greatest Common Factor(GCF) of 420, 656, 97, 788 = 1

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

Step 2: Then multiply all the prime factors GCF(420, 656, 97, 788) = 1.