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 15431, 15438 i.e. 1 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 15431 and 15438 is 1.
GCF(15431,15438) = 1
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 15431
13 | 15431 |
1187 | 1187 |
1 |
Prime factors of 15431 are 13,1187. Prime factorization of 15431 in exponential form is:
15431 = 131×11871
Prime Factorization of 15438
2 | 15438 |
3 | 7719 |
31 | 2573 |
83 | 83 |
1 |
Prime factors of 15438 are 2,3,31,83. Prime factorization of 15438 in exponential form is:
15438 = 21×31×311×831
∴ So by taking common prime factors GCF of 15431 and 15438 is 1
Factors of 15431
List of positive integer factors of 15431 that divides 15431 without a remainder.
1,13,1187,15431
Factors of 15438
List of positive integer factors of 15438 that divides 15438 without a remainder.
1,2,3,6,31,62,83,93,166,186,249,498,2573,5146,7719,15438
Greatest Common Factor
We found the factors and prime factorization of 15431 and 15438. The biggest common factor number is the GCF number.
So the greatest common factor 15431 and 15438 is 1.
Also check out the Least Common Multiple of 15431 and 15438
(i) The GCF of 15431 and 15438 is associative
GCF of 15431 and 15438 = GCF of 15438 and 15431
1. What is the GCF of 15431 and 15438?
Answer: GCF of 15431 and 15438 is 1.
2. What are the Factors of 15431?
Answer: Factors of 15431 are 1, 13, 1187, 15431. There are 4 integers that are factors of 15431. The greatest factor of 15431 is 15431.
3. What are the Factors of 15438?
Answer: Factors of 15438 are 1, 2, 3, 6, 31, 62, 83, 93, 166, 186, 249, 498, 2573, 5146, 7719, 15438. There are 16 integers that are factors of 15438. The greatest factor of 15438 is 15438.
4. How to Find the GCF of 15431 and 15438?
Answer:
Greatest Common Factor of 15431 and 15438 = 1
Step 1: Find the prime factorization of 15431
15431 = 13 x 1187
Step 2: Find the prime factorization of 15438
15438 = 2 x 3 x 31 x 83
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 15431 and 15438 is 1