What is the Greatest Common Factor of 407 and 418?
Greatest common factor (GCF) of 407 and 418 is 11.
GCF(407,418) = 11
We will now calculate the prime factors of 407 and 418, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 407 and 418.
How to find the GCF of 407 and 418?
We will first find the prime factorization of 407 and 418. After we will calculate the factors of 407 and 418 and find the biggest common factor number .
Step-1: Prime Factorization of 407
Prime factors of 407 are 11, 37. Prime factorization of 407 in exponential form is:
407 = 111 × 371
Step-2: Prime Factorization of 418
Prime factors of 418 are 2, 11, 19. Prime factorization of 418 in exponential form is:
418 = 21 × 111 × 191
Step-3: Factors of 407
List of positive integer factors of 407 that divides 407 without a remainder.
1, 11, 37
Step-4: Factors of 418
List of positive integer factors of 418 that divides 407 without a remainder.
1, 2, 11, 19, 22, 38, 209
Final Step: Biggest Common Factor Number
We found the factors and prime factorization of 407 and 418. The biggest common factor number is the GCF number.
So the greatest common factor 407 and 418 is 11.
Also check out the Least Common Multiple of 407 and 418
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