Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 78 and 59 the smallest integer that is 4602 that is divisible by both numbers.
Least Common Multiple (LCM) of 78 and 59 is 4602.
LCM(78,59) = 4602
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 78 and 59. First we will calculate the prime factors of 78 and 59.
Prime Factorization of 78
2 | 78 |
3 | 39 |
13 | 13 |
1 |
Prime factors of 78 are 2, 3,13. Prime factorization of 78 in exponential form is:
78 = 21×31×131
Prime Factorization of 59
59 | 59 |
1 |
Prime factors of 59 are 59. Prime factorization of 59 in exponential form is:
59 = 591
Now multiplying the highest exponent prime factors to calculate the LCM of 78 and 59.
LCM(78,59) = 21×31×131×591
LCM(78,59) = 4602
Factors of 78
List of positive integer factors of 78 that divides 78 without a remainder.
1, 2, 3, 6, 13, 26, 39, 78
Factors of 59
List of positive integer factors of 59 that divides 59 without a remainder.
1, 59
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 78 and 59, than apply into the LCM equation.
GCF(78,59) = 1
LCM(78,59) = ( 78 × 59) / 1
LCM(78,59) = 4602 / 1
LCM(78,59) = 4602
(i) The LCM of 59 and 78 is associative
LCM of 78 and 59 = LCM of 59 and 78
1. What is the LCM of 78 and 59?
Answer: LCM of 78 and 59 is 4602.
2. What are the Factors of 78?
Answer: Factors of 78 are 1, 2, 3, 6, 13, 26, 39, 78. There are 8 integers that are factors of 78. The greatest factor of 78 is 78.
3. What are the Factors of 59?
Answer: Factors of 59 are 1, 59. There are 2 integers that are factors of 59. The greatest factor of 59 is 59.
4. How to Find the LCM of 78 and 59?
Answer:
Least Common Multiple of 78 and 59 = 4602
Step 1: Find the prime factorization of 78
78 = 2 x 3 x 13
Step 2: Find the prime factorization of 59
59 = 59
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 4602 = 2 x 3 x 13 x 59
Step 4: Therefore, the least common multiple of 78 and 59 is 4602.