What is the Greatest Common Factor of 670 and 679?
Greatest common factor (GCF) of 670 and 679 is 1.
GCF(670,679) = 1
We will now calculate the prime factors of 670 and 679, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 670 and 679.
How to find the GCF of 670 and 679?
We will first find the prime factorization of 670 and 679. After we will calculate the factors of 670 and 679 and find the biggest common factor number .
Step-1: Prime Factorization of 670
Prime factors of 670 are 2, 5, 67. Prime factorization of 670 in exponential form is:
670 = 21 × 51 × 671
Step-2: Prime Factorization of 679
Prime factors of 679 are 7, 97. Prime factorization of 679 in exponential form is:
679 = 71 × 971
Step-3: Factors of 670
List of positive integer factors of 670 that divides 670 without a remainder.
1, 2, 5, 10, 67, 134, 335
Step-4: Factors of 679
List of positive integer factors of 679 that divides 670 without a remainder.
1, 7, 97
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 670 and 679. The biggest common factor number is the GCF number.
So the greatest common factor 670 and 679 is 1.
Also check out the Least Common Multiple of 670 and 679
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