Greatest Common Factor of 840, 993, 856, 646, 891

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

• Greatest Common Factor of 840, 993, 856, 646, 891 by common division method
• Greatest Common Factor of 840, 993, 856, 646, 891 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 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 993

List of positive integer factors of 993 that divides 993 without a remainder.

1,3,331,993

Factors of 856

List of positive integer factors of 856 that divides 856 without a remainder.

1,2,4,8,107,214,428,856

Factors of 646

List of positive integer factors of 646 that divides 646 without a remainder.

1,2,17,19,34,38,323,646

Factors of 891

List of positive integer factors of 891 that divides 891 without a remainder.

1,3,9,11,27,33,81,99,297,891

Greatest Common Factor

We found the factors 840,993,856,646,891 . The biggest common factor number is the GCF number.
So the greatest common factor 840,993,856,646,891 is 1.

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

• GCF of 556, 544, 807, 533, 712
• GCF of 207, 524, 979, 813, 677
• GCF of 661, 443, 980, 768, 327
• GCF of 392, 409, 103, 881, 189
• GCF of 436, 156, 145, 412, 689

1. What is the GCF of 840, 993, 856, 646, 891?

Answer: GCF of 840, 993, 856, 646, 891 is 1.

2. How to Find the GCF of 840, 993, 856, 646, 891

Answer: Greatest Common Factor(GCF) of 840, 993, 856, 646, 891 = 1

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

Step 2: Then multiply all the prime factors GCF(840, 993, 856, 646, 891) = 1.