What is the Greatest Common Factor of 221 and 228?
Greatest common factor (GCF) of 221 and 228 is 1.
GCF(221,228) = 1
We will now calculate the prime factors of 221 and 228, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 221 and 228.
How to find the GCF of 221 and 228?
We will first find the prime factorization of 221 and 228. After we will calculate the factors of 221 and 228 and find the biggest common factor number .
Step-1: Prime Factorization of 221
Prime factors of 221 are 13, 17. Prime factorization of 221 in exponential form is:
221 = 131 × 171
Step-2: Prime Factorization of 228
Prime factors of 228 are 2, 3, 19. Prime factorization of 228 in exponential form is:
228 = 22 × 31 × 191
Step-3: Factors of 221
List of positive integer factors of 221 that divides 221 without a remainder.
1, 13, 17
Step-4: Factors of 228
List of positive integer factors of 228 that divides 221 without a remainder.
1, 2, 3, 4, 6, 12, 19, 38, 57, 76, 114
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 221 and 228. The biggest common factor number is the GCF number.
So the greatest common factor 221 and 228 is 1.
Also check out the Least Common Multiple of 221 and 228
Related Greatest Common Factors of 221
- GCF of 221 and 225
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Related Greatest Common Factors of 228
- GCF of 228 and 232
- GCF of 228 and 233
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