Greatest Common Factor of 25, 42, 81, 525

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

• Greatest Common Factor of 25, 42, 81, 525 by common division method
• Greatest Common Factor of 25, 42, 81, 525 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 25

List of positive integer factors of 25 that divides 25 without a remainder.

1,5,25

Factors of 42

List of positive integer factors of 42 that divides 42 without a remainder.

1,2,3,6,7,14,21,42

Factors of 81

List of positive integer factors of 81 that divides 81 without a remainder.

1,3,9,27,81

Factors of 525

List of positive integer factors of 525 that divides 525 without a remainder.

1,3,5,7,15,21,25,35,75,105,175,525

Greatest Common Factor

We found the factors 25,42,81,525 . The biggest common factor number is the GCF number.
So the greatest common factor 25,42,81,525 is 1.

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

• GCF of 39, 77, 88, 282
• GCF of 84, 29, 94, 836
• GCF of 81, 56, 75, 563
• GCF of 33, 62, 82, 215
• GCF of 29, 77, 86, 537

1. What is the GCF of 25, 42, 81, 525?

Answer: GCF of 25, 42, 81, 525 is 1.

2. How to Find the GCF of 25, 42, 81, 525

Answer: Greatest Common Factor(GCF) of 25, 42, 81, 525 = 1

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

Step 2: Then multiply all the prime factors GCF(25, 42, 81, 525) = 1.