Greatest Common Factor of 21, 149, 143

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

• Greatest Common Factor of 21, 149, 143 by common division method
• Greatest Common Factor of 21, 149, 143 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 143

List of positive integer factors of 143 that divides 143 without a remainder.

1,11,13,143

Greatest Common Factor

We found the factors 21,149,143 . The biggest common factor number is the GCF number.
So the greatest common factor 21,149,143 is 1.

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

• GCF of 65, 604, 968
• GCF of 71, 957, 612
• GCF of 19, 439, 347
• GCF of 77, 794, 413
• GCF of 38, 277, 598

1. What is the GCF of 21, 149, 143?

Answer: GCF of 21, 149, 143 is 1.

2. How to Find the GCF of 21, 149, 143

Answer: Greatest Common Factor(GCF) of 21, 149, 143 = 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, 143) = 1.