Greatest Common Factor of 21, 107, 153

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

• Greatest Common Factor of 21, 107, 153 by common division method
• Greatest Common Factor of 21, 107, 153 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 107

List of positive integer factors of 107 that divides 107 without a remainder.

1,107

Factors of 153

List of positive integer factors of 153 that divides 153 without a remainder.

1,3,9,17,51,153

Greatest Common Factor

We found the factors 21,107,153 . The biggest common factor number is the GCF number.
So the greatest common factor 21,107,153 is 1.

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

• GCF of 32, 946, 852
• GCF of 46, 268, 555
• GCF of 12, 384, 287
• GCF of 31, 996, 996
• GCF of 85, 423, 337

1. What is the GCF of 21, 107, 153?

Answer: GCF of 21, 107, 153 is 1.

2. How to Find the GCF of 21, 107, 153

Answer: Greatest Common Factor(GCF) of 21, 107, 153 = 1

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

Step 2: Then multiply all the prime factors GCF(21, 107, 153) = 1.