What is the Greatest Common Factor of 64390 and 64405?
Greatest common factor (GCF) of 64390 and 64405 is 5.
GCF(64390,64405) = 5
We will now calculate the prime factors of 64390 and 64405, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 64390 and 64405.
How to find the GCF of 64390 and 64405?
We will first find the prime factorization of 64390 and 64405. After we will calculate the factors of 64390 and 64405 and find the biggest common factor number .
Step-1: Prime Factorization of 64390
Prime factors of 64390 are 2, 5, 47, 137. Prime factorization of 64390 in exponential form is:
64390 = 21 × 51 × 471 × 1371
Step-2: Prime Factorization of 64405
Prime factors of 64405 are 5, 11, 1171. Prime factorization of 64405 in exponential form is:
64405 = 51 × 111 × 11711
Step-3: Factors of 64390
List of positive integer factors of 64390 that divides 64390 without a remainder.
1, 2, 5, 10, 47, 94, 137, 235, 274, 470, 685, 1370, 6439, 12878, 32195
Step-4: Factors of 64405
List of positive integer factors of 64405 that divides 64390 without a remainder.
1, 5, 11, 55, 1171, 5855, 12881
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 64390 and 64405. The biggest common factor number is the GCF number.
So the greatest common factor 64390 and 64405 is 5.
Also check out the Least Common Multiple of 64390 and 64405
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