What is the Greatest Common Factor of 850 and 870?
Greatest common factor (GCF) of 850 and 870 is 10.
GCF(850,870) = 10
We will now calculate the prime factors of 850 and 870, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 850 and 870.
How to find the GCF of 850 and 870?
We will first find the prime factorization of 850 and 870. After we will calculate the factors of 850 and 870 and find the biggest common factor number .
Step-1: Prime Factorization of 850
Prime factors of 850 are 2, 5, 17. Prime factorization of 850 in exponential form is:
850 = 21 × 52 × 171
Step-2: Prime Factorization of 870
Prime factors of 870 are 2, 3, 5, 29. Prime factorization of 870 in exponential form is:
870 = 21 × 31 × 51 × 291
Step-3: Factors of 850
List of positive integer factors of 850 that divides 850 without a remainder.
1, 2, 5, 10, 17, 25, 34, 50, 85, 170, 425
Step-4: Factors of 870
List of positive integer factors of 870 that divides 850 without a remainder.
1, 2, 3, 5, 6, 10, 15, 29, 30, 58, 87, 145, 174, 290, 435
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 850 and 870. The biggest common factor number is the GCF number.
So the greatest common factor 850 and 870 is 10.
Also check out the Least Common Multiple of 850 and 870
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