What is the Greatest Common Factor of 650 and 660?
Greatest common factor (GCF) of 650 and 660 is 10.
GCF(650,660) = 10
We will now calculate the prime factors of 650 and 660, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 650 and 660.
How to find the GCF of 650 and 660?
We will first find the prime factorization of 650 and 660. After we will calculate the factors of 650 and 660 and find the biggest common factor number .
Step-1: Prime Factorization of 650
Prime factors of 650 are 2, 5, 13. Prime factorization of 650 in exponential form is:
650 = 21 × 52 × 131
Step-2: Prime Factorization of 660
Prime factors of 660 are 2, 3, 5, 11. Prime factorization of 660 in exponential form is:
660 = 22 × 31 × 51 × 111
Step-3: Factors of 650
List of positive integer factors of 650 that divides 650 without a remainder.
1, 2, 5, 10, 13, 25, 26, 50, 65, 130, 325
Step-4: Factors of 660
List of positive integer factors of 660 that divides 650 without a remainder.
1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 650 and 660. The biggest common factor number is the GCF number.
So the greatest common factor 650 and 660 is 10.
Also check out the Least Common Multiple of 650 and 660
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