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 254, 258 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 254 and 258 is 2.
GCF(254,258) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 254
2 | 254 |
127 | 127 |
1 |
Prime factors of 254 are 2,127. Prime factorization of 254 in exponential form is:
254 = 21×1271
Prime Factorization of 258
2 | 258 |
3 | 129 |
43 | 43 |
1 |
Prime factors of 258 are 2,3,43. Prime factorization of 258 in exponential form is:
258 = 21×31×431
∴ So by taking common prime factors GCF of 254 and 258 is 2
Factors of 254
List of positive integer factors of 254 that divides 254 without a remainder.
1,2,127,254
Factors of 258
List of positive integer factors of 258 that divides 258 without a remainder.
1,2,3,6,43,86,129,258
Greatest Common Factor
We found the factors and prime factorization of 254 and 258. The biggest common factor number is the GCF number.
So the greatest common factor 254 and 258 is 2.
Also check out the Least Common Multiple of 254 and 258
(i) The GCF of 254 and 258 is associative
GCF of 254 and 258 = GCF of 258 and 254
1. What is the GCF of 254 and 258?
Answer: GCF of 254 and 258 is 2.
2. What are the Factors of 254?
Answer: Factors of 254 are 1, 2, 127, 254. There are 4 integers that are factors of 254. The greatest factor of 254 is 254.
3. What are the Factors of 258?
Answer: Factors of 258 are 1, 2, 3, 6, 43, 86, 129, 258. There are 8 integers that are factors of 258. The greatest factor of 258 is 258.
4. How to Find the GCF of 254 and 258?
Answer:
Greatest Common Factor of 254 and 258 = 2
Step 1: Find the prime factorization of 254
254 = 2 x 127
Step 2: Find the prime factorization of 258
258 = 2 x 3 x 43
Step 3: Multiply those factors both numbers have in common in steps i) or ii) above to find the gcf:
GCF = 2
Step 4: Therefore, the greatest common factor of 254 and 258 is 2