Greatest Common Factor of 30, 77, 76, 421

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

• Greatest Common Factor of 30, 77, 76, 421 by common division method
• Greatest Common Factor of 30, 77, 76, 421 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 30

List of positive integer factors of 30 that divides 30 without a remainder.

1,2,3,5,6,10,15,30

Factors of 77

List of positive integer factors of 77 that divides 77 without a remainder.

1,7,11,77

Factors of 76

List of positive integer factors of 76 that divides 76 without a remainder.

1,2,4,19,38,76

Factors of 421

List of positive integer factors of 421 that divides 421 without a remainder.

1,421

Greatest Common Factor

We found the factors 30,77,76,421 . The biggest common factor number is the GCF number.
So the greatest common factor 30,77,76,421 is 1.

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

• GCF of 23, 83, 59, 379
• GCF of 41, 78, 91, 180
• GCF of 78, 45, 61, 680
• GCF of 23, 50, 62, 109
• GCF of 40, 63, 23, 218

1. What is the GCF of 30, 77, 76, 421?

Answer: GCF of 30, 77, 76, 421 is 1.

2. How to Find the GCF of 30, 77, 76, 421

Answer: Greatest Common Factor(GCF) of 30, 77, 76, 421 = 1

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

Step 2: Then multiply all the prime factors GCF(30, 77, 76, 421) = 1.