Greatest Common Factor of 397, 840, 421

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

• Greatest Common Factor of 397, 840, 421 by common division method
• Greatest Common Factor of 397, 840, 421 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 397

List of positive integer factors of 397 that divides 397 without a remainder.

1,397

Factors of 840

List of positive integer factors of 840 that divides 840 without a remainder.

1,2,3,4,5,6,7,8,10,12,14,15,20,21,24,28,30,35,40,42,56,60,70,84,105,120,140,168,210,280,420,840

Factors of 421

List of positive integer factors of 421 that divides 421 without a remainder.

1,421

Greatest Common Factor

We found the factors 397,840,421 . The biggest common factor number is the GCF number.
So the greatest common factor 397,840,421 is 1.

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

• GCF of 537, 733, 379
• GCF of 313, 806, 145
• GCF of 375, 910, 210
• GCF of 834, 706, 718
• GCF of 264, 353, 717

1. What is the GCF of 397, 840, 421?

Answer: GCF of 397, 840, 421 is 1.

2. How to Find the GCF of 397, 840, 421

Answer: Greatest Common Factor(GCF) of 397, 840, 421 = 1

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

Step 2: Then multiply all the prime factors GCF(397, 840, 421) = 1.