Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Make use of GCF Calculator to quickly find the Greatest Common Factor of numbers 417, 421 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 417 and 421 is 1.
GCF(417,421) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 417
3 | 417 |
139 | 139 |
1 |
Prime factors of 417 are 3,139. Prime factorization of 417 in exponential form is:
417 = 31×1391
Prime Factorization of 421
421 | 421 |
1 |
Prime factors of 421 are 421. Prime factorization of 421 in exponential form is:
421 = 4211
∴ So by taking common prime factors GCF of 417 and 421 is 1
Factors of 417
List of positive integer factors of 417 that divides 417 without a remainder.
1,3,139,417
Factors of 421
List of positive integer factors of 421 that divides 421 without a remainder.
1,421
Greatest Common Factor
We found the factors and prime factorization of 417 and 421. The biggest common factor number is the GCF number.
So the greatest common factor 417 and 421 is 1.
Also check out the Least Common Multiple of 417 and 421
(i) The GCF of 417 and 421 is associative
GCF of 417 and 421 = GCF of 421 and 417
1. What is the GCF of 417 and 421?
Answer: GCF of 417 and 421 is 1.
2. What are the Factors of 417?
Answer: Factors of 417 are 1, 3, 139, 417. There are 4 integers that are factors of 417. The greatest factor of 417 is 417.
3. What are the Factors of 421?
Answer: Factors of 421 are 1, 421. There are 2 integers that are factors of 421. The greatest factor of 421 is 421.
4. How to Find the GCF of 417 and 421?
Answer:
Greatest Common Factor of 417 and 421 = 1
Step 1: Find the prime factorization of 417
417 = 3 x 139
Step 2: Find the prime factorization of 421
421 = 421
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = = 1
Step 4: Therefore, the greatest common factor of 417 and 421 is 1