Greatest Common Factor of 247, 21, 148

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

• Greatest Common Factor of 247, 21, 148 by common division method
• Greatest Common Factor of 247, 21, 148 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 247

List of positive integer factors of 247 that divides 247 without a remainder.

1,13,19,247

Factors of 21

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

1,3,7,21

Factors of 148

List of positive integer factors of 148 that divides 148 without a remainder.

1,2,4,37,74,148

Greatest Common Factor

We found the factors 247,21,148 . The biggest common factor number is the GCF number.
So the greatest common factor 247,21,148 is 1.

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

• GCF of 768, 64, 566
• GCF of 639, 67, 173
• GCF of 197, 67, 156
• GCF of 774, 57, 274
• GCF of 795, 77, 173

1. What is the GCF of 247, 21, 148?

Answer: GCF of 247, 21, 148 is 1.

2. How to Find the GCF of 247, 21, 148

Answer: Greatest Common Factor(GCF) of 247, 21, 148 = 1

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

Step 2: Then multiply all the prime factors GCF(247, 21, 148) = 1.