Greatest Common Factor of 21, 49, 35, 551

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

• Greatest Common Factor of 21, 49, 35, 551 by common division method
• Greatest Common Factor of 21, 49, 35, 551 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 21

List of positive integer factors of 21 that divides 21 without a remainder.

1,3,7,21

Factors of 49

List of positive integer factors of 49 that divides 49 without a remainder.

1,7,49

Factors of 35

List of positive integer factors of 35 that divides 35 without a remainder.

1,5,7,35

Factors of 551

List of positive integer factors of 551 that divides 551 without a remainder.

1,19,29,551

Greatest Common Factor

We found the factors 21,49,35,551 . The biggest common factor number is the GCF number.
So the greatest common factor 21,49,35,551 is 1.

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

• GCF of 24, 55, 36, 101
• GCF of 87, 95, 92, 345
• GCF of 35, 30, 10, 808
• GCF of 65, 70, 82, 968
• GCF of 76, 29, 71, 706

1. What is the GCF of 21, 49, 35, 551?

Answer: GCF of 21, 49, 35, 551 is 1.

2. How to Find the GCF of 21, 49, 35, 551

Answer: Greatest Common Factor(GCF) of 21, 49, 35, 551 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 49, 35, 551) = 1.