Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 86 and 100 the smallest integer that is 4300 that is divisible by both numbers.
Least Common Multiple (LCM) of 86 and 100 is 4300.
LCM(86,100) = 4300
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 86 and 100. First we will calculate the prime factors of 86 and 100.
Prime Factorization of 86
2 | 86 |
43 | 43 |
1 |
Prime factors of 86 are 2,43. Prime factorization of 86 in exponential form is:
86 = 21×431
Prime Factorization of 100
2 | 100 |
2 | 50 |
5 | 25 |
5 | 5 |
1 |
Prime factors of 100 are 2,5. Prime factorization of 100 in exponential form is:
100 = 22×52
Now multiplying the highest exponent prime factors to calculate the LCM of 86 and 100.
LCM(86,100) = 22×52×431
LCM(86,100) = 4300
Factors of 86
List of positive integer factors of 86 that divides 86 without a remainder.
1, 2, 43, 86
Factors of 100
List of positive integer factors of 100 that divides 100 without a remainder.
1, 2, 4, 5, 10, 20, 25, 50, 100
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 86 and 100, than apply into the LCM equation.
GCF(86,100) = 2
LCM(86,100) = ( 86 × 100) / 2
LCM(86,100) = 8600 / 2
LCM(86,100) = 4300
(i) The LCM of 100 and 86 is associative
LCM of 86 and 100 = LCM of 100 and 86
1. What is the LCM of 86 and 100?
Answer: LCM of 86 and 100 is 4300.
2. What are the Factors of 86?
Answer: Factors of 86 are 1, 2, 43, 86. There are 4 integers that are factors of 86. The greatest factor of 86 is 86.
3. What are the Factors of 100?
Answer: Factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50, 100. There are 9 integers that are factors of 100. The greatest factor of 100 is 100.
4. How to Find the LCM of 86 and 100?
Answer:
Least Common Multiple of 86 and 100 = 4300
Step 1: Find the prime factorization of 86
86 = 2 x 43
Step 2: Find the prime factorization of 100
100 = 2 x 2 x 5 x 5
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4300 = 2 x 2 x 5 x 5 x 43
Step 4: Therefore, the least common multiple of 86 and 100 is 4300.