Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7860 and 7866 the smallest integer that is 10304460 that is divisible by both numbers.
Least Common Multiple (LCM) of 7860 and 7866 is 10304460.
LCM(7860,7866) = 10304460
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 7860 and 7866. First we will calculate the prime factors of 7860 and 7866.
Prime Factorization of 7860
2 | 7860 |
2 | 3930 |
3 | 1965 |
5 | 655 |
131 | 131 |
1 |
Prime factors of 7860 are 2, 3, 5,131. Prime factorization of 7860 in exponential form is:
7860 = 22×31×51×1311
Prime Factorization of 7866
2 | 7866 |
3 | 3933 |
3 | 1311 |
19 | 437 |
23 | 23 |
1 |
Prime factors of 7866 are 2, 3, 19,23. Prime factorization of 7866 in exponential form is:
7866 = 21×32×191×231
Now multiplying the highest exponent prime factors to calculate the LCM of 7860 and 7866.
LCM(7860,7866) = 22×32×51×191×231×1311
LCM(7860,7866) = 10304460
Factors of 7860
List of positive integer factors of 7860 that divides 7860 without a remainder.
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 3930, 7860
Factors of 7866
List of positive integer factors of 7866 that divides 7866 without a remainder.
1, 2, 3, 6, 9, 18, 19, 23, 38, 46, 57, 69, 114, 138, 171, 207, 342, 414, 437, 874, 1311, 2622, 3933, 7866
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7860 and 7866, than apply into the LCM equation.
GCF(7860,7866) = 6
LCM(7860,7866) = ( 7860 × 7866) / 6
LCM(7860,7866) = 61826760 / 6
LCM(7860,7866) = 10304460
(i) The LCM of 7866 and 7860 is associative
LCM of 7860 and 7866 = LCM of 7866 and 7860
1. What is the LCM of 7860 and 7866?
Answer: LCM of 7860 and 7866 is 10304460.
2. What are the Factors of 7860?
Answer: Factors of 7860 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 131, 262, 393, 524, 655, 786, 1310, 1572, 1965, 2620, 3930, 7860. There are 24 integers that are factors of 7860. The greatest factor of 7860 is 7860.
3. What are the Factors of 7866?
Answer: Factors of 7866 are 1, 2, 3, 6, 9, 18, 19, 23, 38, 46, 57, 69, 114, 138, 171, 207, 342, 414, 437, 874, 1311, 2622, 3933, 7866. There are 24 integers that are factors of 7866. The greatest factor of 7866 is 7866.
4. How to Find the LCM of 7860 and 7866?
Answer:
Least Common Multiple of 7860 and 7866 = 10304460
Step 1: Find the prime factorization of 7860
7860 = 2 x 2 x 3 x 5 x 131
Step 2: Find the prime factorization of 7866
7866 = 2 x 3 x 3 x 19 x 23
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 10304460 = 2 x 2 x 3 x 3 x 5 x 19 x 23 x 131
Step 4: Therefore, the least common multiple of 7860 and 7866 is 10304460.