Greatest Common Factor of 420, 123, 149

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

• Greatest Common Factor of 420, 123, 149 by common division method
• Greatest Common Factor of 420, 123, 149 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 420

List of positive integer factors of 420 that divides 420 without a remainder.

1,2,3,4,5,6,7,10,12,14,15,20,21,28,30,35,42,60,70,84,105,140,210,420

Factors of 123

List of positive integer factors of 123 that divides 123 without a remainder.

1,3,41,123

Factors of 149

List of positive integer factors of 149 that divides 149 without a remainder.

1,149

Greatest Common Factor

We found the factors 420,123,149 . The biggest common factor number is the GCF number.
So the greatest common factor 420,123,149 is 1.

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

• GCF of 736, 825, 426
• GCF of 324, 422, 424
• GCF of 364, 148, 623
• GCF of 897, 570, 959
• GCF of 348, 207, 463

1. What is the GCF of 420, 123, 149?

Answer: GCF of 420, 123, 149 is 1.

2. How to Find the GCF of 420, 123, 149

Answer: Greatest Common Factor(GCF) of 420, 123, 149 = 1

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

Step 2: Then multiply all the prime factors GCF(420, 123, 149) = 1.