Greatest Common Factor of 21, 124, 147

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

• Greatest Common Factor of 21, 124, 147 by common division method
• Greatest Common Factor of 21, 124, 147 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 124

List of positive integer factors of 124 that divides 124 without a remainder.

1,2,4,31,62,124

Factors of 147

List of positive integer factors of 147 that divides 147 without a remainder.

1,3,7,21,49,147

Greatest Common Factor

We found the factors 21,124,147 . The biggest common factor number is the GCF number.
So the greatest common factor 21,124,147 is 1.

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

• GCF of 45, 207, 499
• GCF of 66, 595, 538
• GCF of 90, 721, 365
• GCF of 82, 648, 504
• GCF of 95, 818, 963

1. What is the GCF of 21, 124, 147?

Answer: GCF of 21, 124, 147 is 1.

2. How to Find the GCF of 21, 124, 147

Answer: Greatest Common Factor(GCF) of 21, 124, 147 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 124, 147) = 1.