Greatest Common Factor of 21, 149, 121

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

• Greatest Common Factor of 21, 149, 121 by common division method
• Greatest Common Factor of 21, 149, 121 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 149

List of positive integer factors of 149 that divides 149 without a remainder.

1,149

Factors of 121

List of positive integer factors of 121 that divides 121 without a remainder.

1,11,121

Greatest Common Factor

We found the factors 21,149,121 . The biggest common factor number is the GCF number.
So the greatest common factor 21,149,121 is 1.

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

• GCF of 34, 330, 522
• GCF of 87, 656, 322
• GCF of 14, 879, 312
• GCF of 80, 830, 775
• GCF of 51, 426, 420

1. What is the GCF of 21, 149, 121?

Answer: GCF of 21, 149, 121 is 1.

2. How to Find the GCF of 21, 149, 121

Answer: Greatest Common Factor(GCF) of 21, 149, 121 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 149, 121) = 1.