Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3860 and 3861 the smallest integer that is 14903460 that is divisible by both numbers.
Least Common Multiple (LCM) of 3860 and 3861 is 14903460.
LCM(3860,3861) = 14903460
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 3860 and 3861. First we will calculate the prime factors of 3860 and 3861.
Prime Factorization of 3860
2 | 3860 |
2 | 1930 |
5 | 965 |
193 | 193 |
1 |
Prime factors of 3860 are 2, 5,193. Prime factorization of 3860 in exponential form is:
3860 = 22×51×1931
Prime Factorization of 3861
3 | 3861 |
3 | 1287 |
3 | 429 |
11 | 143 |
13 | 13 |
1 |
Prime factors of 3861 are 3, 11,13. Prime factorization of 3861 in exponential form is:
3861 = 33×111×131
Now multiplying the highest exponent prime factors to calculate the LCM of 3860 and 3861.
LCM(3860,3861) = 22×33×51×111×131×1931
LCM(3860,3861) = 14903460
Factors of 3860
List of positive integer factors of 3860 that divides 3860 without a remainder.
1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860
Factors of 3861
List of positive integer factors of 3861 that divides 3861 without a remainder.
1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 143, 297, 351, 429, 1287, 3861
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3860 and 3861, than apply into the LCM equation.
GCF(3860,3861) = 1
LCM(3860,3861) = ( 3860 × 3861) / 1
LCM(3860,3861) = 14903460 / 1
LCM(3860,3861) = 14903460
(i) The LCM of 3861 and 3860 is associative
LCM of 3860 and 3861 = LCM of 3861 and 3860
1. What is the LCM of 3860 and 3861?
Answer: LCM of 3860 and 3861 is 14903460.
2. What are the Factors of 3860?
Answer: Factors of 3860 are 1, 2, 4, 5, 10, 20, 193, 386, 772, 965, 1930, 3860. There are 12 integers that are factors of 3860. The greatest factor of 3860 is 3860.
3. What are the Factors of 3861?
Answer: Factors of 3861 are 1, 3, 9, 11, 13, 27, 33, 39, 99, 117, 143, 297, 351, 429, 1287, 3861. There are 16 integers that are factors of 3861. The greatest factor of 3861 is 3861.
4. How to Find the LCM of 3860 and 3861?
Answer:
Least Common Multiple of 3860 and 3861 = 14903460
Step 1: Find the prime factorization of 3860
3860 = 2 x 2 x 5 x 193
Step 2: Find the prime factorization of 3861
3861 = 3 x 3 x 3 x 11 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 14903460 = 2 x 2 x 3 x 3 x 3 x 5 x 11 x 13 x 193
Step 4: Therefore, the least common multiple of 3860 and 3861 is 14903460.