What is the Greatest Common Factor of 858 and 862?
Greatest common factor (GCF) of 858 and 862 is 2.
GCF(858,862) = 2
We will now calculate the prime factors of 858 and 862, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 858 and 862.
How to find the GCF of 858 and 862?
We will first find the prime factorization of 858 and 862. After we will calculate the factors of 858 and 862 and find the biggest common factor number .
Step-1: Prime Factorization of 858
Prime factors of 858 are 2, 3, 11, 13. Prime factorization of 858 in exponential form is:
858 = 21 × 31 × 111 × 131
Step-2: Prime Factorization of 862
Prime factors of 862 are 2, 431. Prime factorization of 862 in exponential form is:
862 = 21 × 4311
Step-3: Factors of 858
List of positive integer factors of 858 that divides 858 without a remainder.
1, 2, 3, 6, 11, 13, 22, 26, 33, 39, 66, 78, 143, 286, 429
Step-4: Factors of 862
List of positive integer factors of 862 that divides 858 without a remainder.
1, 2, 431
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 858 and 862. The biggest common factor number is the GCF number.
So the greatest common factor 858 and 862 is 2.
Also check out the Least Common Multiple of 858 and 862
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