What is the Greatest Common Factor of 209 and 215?
Greatest common factor (GCF) of 209 and 215 is 1.
GCF(209,215) = 1
We will now calculate the prime factors of 209 and 215, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 209 and 215.
How to find the GCF of 209 and 215?
We will first find the prime factorization of 209 and 215. After we will calculate the factors of 209 and 215 and find the biggest common factor number .
Step-1: Prime Factorization of 209
Prime factors of 209 are 11, 19. Prime factorization of 209 in exponential form is:
209 = 111 × 191
Step-2: Prime Factorization of 215
Prime factors of 215 are 5, 43. Prime factorization of 215 in exponential form is:
215 = 51 × 431
Step-3: Factors of 209
List of positive integer factors of 209 that divides 209 without a remainder.
1, 11, 19
Step-4: Factors of 215
List of positive integer factors of 215 that divides 209 without a remainder.
1, 5, 43
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 209 and 215. The biggest common factor number is the GCF number.
So the greatest common factor 209 and 215 is 1.
Also check out the Least Common Multiple of 209 and 215
Related Greatest Common Factors of 209
- GCF of 209 and 213
- GCF of 209 and 214
- GCF of 209 and 215
- GCF of 209 and 216
- GCF of 209 and 217
- GCF of 209 and 218
- GCF of 209 and 219
- GCF of 209 and 220
- GCF of 209 and 221
- GCF of 209 and 222
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- GCF of 209 and 224
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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
- GCF of 215 and 226
- GCF of 215 and 227
- GCF of 215 and 228
- GCF of 215 and 229
- GCF of 215 and 230
- GCF of 215 and 231
- GCF of 215 and 232
- GCF of 215 and 233
- GCF of 215 and 234
- GCF of 215 and 235