What is the Greatest Common Factor of 215 and 221?
Greatest common factor (GCF) of 215 and 221 is 1.
GCF(215,221) = 1
We will now calculate the prime factors of 215 and 221, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 215 and 221.
How to find the GCF of 215 and 221?
We will first find the prime factorization of 215 and 221. After we will calculate the factors of 215 and 221 and find the biggest common factor number .
Step-1: Prime Factorization of 215
Prime factors of 215 are 5, 43. Prime factorization of 215 in exponential form is:
215 = 51 × 431
Step-2: Prime Factorization of 221
Prime factors of 221 are 13, 17. Prime factorization of 221 in exponential form is:
221 = 131 × 171
Step-3: Factors of 215
List of positive integer factors of 215 that divides 215 without a remainder.
1, 5, 43
Step-4: Factors of 221
List of positive integer factors of 221 that divides 215 without a remainder.
1, 13, 17
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 215 and 221. The biggest common factor number is the GCF number.
So the greatest common factor 215 and 221 is 1.
Also check out the Least Common Multiple of 215 and 221
Related Greatest Common Factors of 215
- GCF of 215 and 219
- GCF of 215 and 220
- GCF of 215 and 221
- GCF of 215 and 222
- GCF of 215 and 223
- GCF of 215 and 224
- GCF of 215 and 225
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Related Greatest Common Factors of 221
- GCF of 221 and 225
- GCF of 221 and 226
- GCF of 221 and 227
- GCF of 221 and 228
- GCF of 221 and 229
- GCF of 221 and 230
- GCF of 221 and 231
- GCF of 221 and 232
- GCF of 221 and 233
- GCF of 221 and 234
- GCF of 221 and 235
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- GCF of 221 and 237
- GCF of 221 and 238
- GCF of 221 and 239
- GCF of 221 and 240
- GCF of 221 and 241