Greatest Common Factor of 747, 258, 21

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

• Greatest Common Factor of 747, 258, 21 by common division method
• Greatest Common Factor of 747, 258, 21 with matching the biggest common factor

Maximum 4 Number can be enter but you can reset

∴ So the GCF of the given numbers is 3 = 3

Factors of 747

List of positive integer factors of 747 that divides 747 without a remainder.

1,3,9,83,249,747

Factors of 258

List of positive integer factors of 258 that divides 258 without a remainder.

1,2,3,6,43,86,129,258

Factors of 21

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

1,3,7,21

Greatest Common Factor

We found the factors 747,258,21 . The biggest common factor number is the GCF number.
So the greatest common factor 747,258,21 is 3.

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

• GCF of 690, 567, 26
• GCF of 948, 511, 92
• GCF of 503, 329, 44
• GCF of 272, 148, 55
• GCF of 274, 821, 61

1. What is the GCF of 747, 258, 21?

Answer: GCF of 747, 258, 21 is 3.

2. How to Find the GCF of 747, 258, 21

Answer: Greatest Common Factor(GCF) of 747, 258, 21 = 3

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

Step 2: Then multiply all the prime factors GCF(747, 258, 21) = 3.