Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 307420 and 307428 the smallest integer that is 23627378940 that is divisible by both numbers.
Least Common Multiple (LCM) of 307420 and 307428 is 23627378940.
LCM(307420,307428) = 23627378940
Least common multiple or lowest common denominator (LCD) can be calculated in three ways;
Least common multiple can be found by multiplying the highest exponent prime factors of 307420 and 307428. First we will calculate the prime factors of 307420 and 307428.
Prime Factorization of 307420
2 | 307420 |
2 | 153710 |
5 | 76855 |
19 | 15371 |
809 | 809 |
1 |
Prime factors of 307420 are 2, 5, 19,809. Prime factorization of 307420 in exponential form is:
307420 = 22×51×191×8091
Prime Factorization of 307428
2 | 307428 |
2 | 153714 |
3 | 76857 |
11 | 25619 |
17 | 2329 |
137 | 137 |
1 |
Prime factors of 307428 are 2, 3, 11, 17,137. Prime factorization of 307428 in exponential form is:
307428 = 22×31×111×171×1371
Now multiplying the highest exponent prime factors to calculate the LCM of 307420 and 307428.
LCM(307420,307428) = 22×31×51×111×171×191×1371×8091
LCM(307420,307428) = 23627378940
Factors of 307420
List of positive integer factors of 307420 that divides 307420 without a remainder.
1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 809, 1618, 3236, 4045, 8090, 15371, 16180, 30742, 61484, 76855, 153710, 307420
Factors of 307428
List of positive integer factors of 307428 that divides 307428 without a remainder.
1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 44, 51, 66, 68, 102, 132, 137, 187, 204, 274, 374, 411, 548, 561, 748, 822, 1122, 1507, 1644, 2244, 2329, 3014, 4521, 4658, 6028, 6987, 9042, 9316, 13974, 18084, 25619, 27948, 51238, 76857, 102476, 153714, 307428
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 307420 and 307428, than apply into the LCM equation.
GCF(307420,307428) = 4
LCM(307420,307428) = ( 307420 × 307428) / 4
LCM(307420,307428) = 94509515760 / 4
LCM(307420,307428) = 23627378940
(i) The LCM of 307428 and 307420 is associative
LCM of 307420 and 307428 = LCM of 307428 and 307420
1. What is the LCM of 307420 and 307428?
Answer: LCM of 307420 and 307428 is 23627378940.
2. What are the Factors of 307420?
Answer: Factors of 307420 are 1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 809, 1618, 3236, 4045, 8090, 15371, 16180, 30742, 61484, 76855, 153710, 307420. There are 24 integers that are factors of 307420. The greatest factor of 307420 is 307420.
3. What are the Factors of 307428?
Answer: Factors of 307428 are 1, 2, 3, 4, 6, 11, 12, 17, 22, 33, 34, 44, 51, 66, 68, 102, 132, 137, 187, 204, 274, 374, 411, 548, 561, 748, 822, 1122, 1507, 1644, 2244, 2329, 3014, 4521, 4658, 6028, 6987, 9042, 9316, 13974, 18084, 25619, 27948, 51238, 76857, 102476, 153714, 307428. There are 48 integers that are factors of 307428. The greatest factor of 307428 is 307428.
4. How to Find the LCM of 307420 and 307428?
Answer:
Least Common Multiple of 307420 and 307428 = 23627378940
Step 1: Find the prime factorization of 307420
307420 = 2 x 2 x 5 x 19 x 809
Step 2: Find the prime factorization of 307428
307428 = 2 x 2 x 3 x 11 x 17 x 137
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 23627378940 = 2 x 2 x 3 x 5 x 11 x 17 x 19 x 137 x 809
Step 4: Therefore, the least common multiple of 307420 and 307428 is 23627378940.