What is the Greatest Common Factor of 21147 and 21162?
Greatest common factor (GCF) of 21147 and 21162 is 3.
GCF(21147,21162) = 3
We will now calculate the prime factors of 21147 and 21162, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 21147 and 21162.
How to find the GCF of 21147 and 21162?
We will first find the prime factorization of 21147 and 21162. After we will calculate the factors of 21147 and 21162 and find the biggest common factor number .
Step-1: Prime Factorization of 21147
Prime factors of 21147 are 3, 7, 19, 53. Prime factorization of 21147 in exponential form is:
21147 = 31 × 71 × 191 × 531
Step-2: Prime Factorization of 21162
Prime factors of 21162 are 2, 3, 3527. Prime factorization of 21162 in exponential form is:
21162 = 21 × 31 × 35271
Step-3: Factors of 21147
List of positive integer factors of 21147 that divides 21147 without a remainder.
1, 3, 7, 19, 21, 53, 57, 133, 159, 371, 399, 1007, 1113, 3021, 7049
Step-4: Factors of 21162
List of positive integer factors of 21162 that divides 21147 without a remainder.
1, 2, 3, 6, 3527, 7054, 10581
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 21147 and 21162. The biggest common factor number is the GCF number.
So the greatest common factor 21147 and 21162 is 3.
Also check out the Least Common Multiple of 21147 and 21162
Related Greatest Common Factors of 21147
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- GCF of 21147 and 21162
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Related Greatest Common Factors of 21162
- GCF of 21162 and 21166
- GCF of 21162 and 21167
- GCF of 21162 and 21168
- GCF of 21162 and 21169
- GCF of 21162 and 21170
- GCF of 21162 and 21171
- GCF of 21162 and 21172
- GCF of 21162 and 21173
- GCF of 21162 and 21174
- GCF of 21162 and 21175
- GCF of 21162 and 21176
- GCF of 21162 and 21177
- GCF of 21162 and 21178
- GCF of 21162 and 21179
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