What is the Greatest Common Factor of 258 and 272?
Greatest common factor (GCF) of 258 and 272 is 2.
GCF(258,272) = 2
We will now calculate the prime factors of 258 and 272, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 258 and 272.
How to find the GCF of 258 and 272?
We will first find the prime factorization of 258 and 272. After we will calculate the factors of 258 and 272 and find the biggest common factor number .
Step-1: Prime Factorization of 258
Prime factors of 258 are 2, 3, 43. Prime factorization of 258 in exponential form is:
258 = 21 × 31 × 431
Step-2: Prime Factorization of 272
Prime factors of 272 are 2, 17. Prime factorization of 272 in exponential form is:
272 = 24 × 171
Step-3: Factors of 258
List of positive integer factors of 258 that divides 258 without a remainder.
1, 2, 3, 6, 43, 86, 129
Step-4: Factors of 272
List of positive integer factors of 272 that divides 258 without a remainder.
1, 2, 4, 8, 16, 17, 34, 68, 136
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 258 and 272. The biggest common factor number is the GCF number.
So the greatest common factor 258 and 272 is 2.
Also check out the Least Common Multiple of 258 and 272
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