Greatest Common Factor of 420, 1223

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

• Greatest Common Factor of 420, 1223 by common division method
• Greatest Common Factor of 420, 1223 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 1223

List of positive integer factors of 1223 that divides 1223 without a remainder.

1,1223

Greatest Common Factor

We found the factors 420,1223 . The biggest common factor number is the GCF number.
So the greatest common factor 420,1223 is 1.

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

• GCF of 688, 3638
• GCF of 926, 5956
• GCF of 299, 9378
• GCF of 900, 3458
• GCF of 358, 4991

1. What is the GCF of 420, 1223?

Answer: GCF of 420, 1223 is 1.

2. How to Find the GCF of 420, 1223

Answer: Greatest Common Factor(GCF) of 420, 1223 = 1

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

Step 2: Then multiply all the prime factors GCF(420, 1223) = 1.