Greatest Common Factor of 91, 51, 421

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

• Greatest Common Factor of 91, 51, 421 by common division method
• Greatest Common Factor of 91, 51, 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 91

List of positive integer factors of 91 that divides 91 without a remainder.

1,7,13,91

Factors of 51

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

1,3,17,51

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 91,51,421 . The biggest common factor number is the GCF number.
So the greatest common factor 91,51,421 is 1.

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

• GCF of 57, 44, 851
• GCF of 52, 42, 750
• GCF of 21, 29, 506
• GCF of 64, 20, 698
• GCF of 62, 97, 426

1. What is the GCF of 91, 51, 421?

Answer: GCF of 91, 51, 421 is 1.

2. How to Find the GCF of 91, 51, 421

Answer: Greatest Common Factor(GCF) of 91, 51, 421 = 1

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

Step 2: Then multiply all the prime factors GCF(91, 51, 421) = 1.