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 15220, 15222 i.e. 2 largest integer by which both the numbers can be divided.
Greatest common factor (GCF) of 15220 and 15222 is 2.
GCF(15220,15222) = 2
Greatest common factor or Greatest common divisor (GCD) can be calculated in following way;
Prime Factorization of 15220
2 | 15220 |
2 | 7610 |
5 | 3805 |
761 | 761 |
1 |
Prime factors of 15220 are 2,5,761. Prime factorization of 15220 in exponential form is:
15220 = 22×51×7611
Prime Factorization of 15222
2 | 15222 |
3 | 7611 |
43 | 2537 |
59 | 59 |
1 |
Prime factors of 15222 are 2,3,43,59. Prime factorization of 15222 in exponential form is:
15222 = 21×31×431×591
∴ So by taking common prime factors GCF of 15220 and 15222 is 2
Factors of 15220
List of positive integer factors of 15220 that divides 15220 without a remainder.
1,2,4,5,10,20,761,1522,3044,3805,7610,15220
Factors of 15222
List of positive integer factors of 15222 that divides 15222 without a remainder.
1,2,3,6,43,59,86,118,129,177,258,354,2537,5074,7611,15222
Greatest Common Factor
We found the factors and prime factorization of 15220 and 15222. The biggest common factor number is the GCF number.
So the greatest common factor 15220 and 15222 is 2.
Also check out the Least Common Multiple of 15220 and 15222
(i) The GCF of 15220 and 15222 is associative
GCF of 15220 and 15222 = GCF of 15222 and 15220
1. What is the GCF of 15220 and 15222?
Answer: GCF of 15220 and 15222 is 2.
2. What are the Factors of 15220?
Answer: Factors of 15220 are 1, 2, 4, 5, 10, 20, 761, 1522, 3044, 3805, 7610, 15220. There are 12 integers that are factors of 15220. The greatest factor of 15220 is 15220.
3. What are the Factors of 15222?
Answer: Factors of 15222 are 1, 2, 3, 6, 43, 59, 86, 118, 129, 177, 258, 354, 2537, 5074, 7611, 15222. There are 16 integers that are factors of 15222. The greatest factor of 15222 is 15222.
4. How to Find the GCF of 15220 and 15222?
Answer:
Greatest Common Factor of 15220 and 15222 = 2
Step 1: Find the prime factorization of 15220
15220 = 2 x 2 x 5 x 761
Step 2: Find the prime factorization of 15222
15222 = 2 x 3 x 43 x 59
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 15220 and 15222 is 2