Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 860 and 868 the smallest integer that is 186620 that is divisible by both numbers.
Least Common Multiple (LCM) of 860 and 868 is 186620.
LCM(860,868) = 186620
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 860 and 868. First we will calculate the prime factors of 860 and 868.
Prime Factorization of 860
2 | 860 |
2 | 430 |
5 | 215 |
43 | 43 |
1 |
Prime factors of 860 are 2, 5,43. Prime factorization of 860 in exponential form is:
860 = 22×51×431
Prime Factorization of 868
2 | 868 |
2 | 434 |
7 | 217 |
31 | 31 |
1 |
Prime factors of 868 are 2, 7,31. Prime factorization of 868 in exponential form is:
868 = 22×71×311
Now multiplying the highest exponent prime factors to calculate the LCM of 860 and 868.
LCM(860,868) = 22×51×71×311×431
LCM(860,868) = 186620
Factors of 860
List of positive integer factors of 860 that divides 860 without a remainder.
1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860
Factors of 868
List of positive integer factors of 868 that divides 868 without a remainder.
1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 860 and 868, than apply into the LCM equation.
GCF(860,868) = 4
LCM(860,868) = ( 860 × 868) / 4
LCM(860,868) = 746480 / 4
LCM(860,868) = 186620
(i) The LCM of 868 and 860 is associative
LCM of 860 and 868 = LCM of 868 and 860
1. What is the LCM of 860 and 868?
Answer: LCM of 860 and 868 is 186620.
2. What are the Factors of 860?
Answer: Factors of 860 are 1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860. There are 12 integers that are factors of 860. The greatest factor of 860 is 860.
3. What are the Factors of 868?
Answer: Factors of 868 are 1, 2, 4, 7, 14, 28, 31, 62, 124, 217, 434, 868. There are 12 integers that are factors of 868. The greatest factor of 868 is 868.
4. How to Find the LCM of 860 and 868?
Answer:
Least Common Multiple of 860 and 868 = 186620
Step 1: Find the prime factorization of 860
860 = 2 x 2 x 5 x 43
Step 2: Find the prime factorization of 868
868 = 2 x 2 x 7 x 31
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 186620 = 2 x 2 x 5 x 7 x 31 x 43
Step 4: Therefore, the least common multiple of 860 and 868 is 186620.