Greatest Common Factor of 78, 21, 553, 133

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

• Greatest Common Factor of 78, 21, 553, 133 by common division method
• Greatest Common Factor of 78, 21, 553, 133 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 78

List of positive integer factors of 78 that divides 78 without a remainder.

1,2,3,6,13,26,39,78

Factors of 21

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

1,3,7,21

Factors of 553

List of positive integer factors of 553 that divides 553 without a remainder.

1,7,79,553

Factors of 133

List of positive integer factors of 133 that divides 133 without a remainder.

1,7,19,133

Greatest Common Factor

We found the factors 78,21,553,133 . The biggest common factor number is the GCF number.
So the greatest common factor 78,21,553,133 is 1.

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

• GCF of 92, 38, 882, 143
• GCF of 64, 55, 979, 534
• GCF of 41, 30, 853, 483
• GCF of 50, 51, 190, 864
• GCF of 68, 34, 137, 248

1. What is the GCF of 78, 21, 553, 133?

Answer: GCF of 78, 21, 553, 133 is 1.

2. How to Find the GCF of 78, 21, 553, 133

Answer: Greatest Common Factor(GCF) of 78, 21, 553, 133 = 1

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

Step 2: Then multiply all the prime factors GCF(78, 21, 553, 133) = 1.