Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 76 and 79 the smallest integer that is 6004 that is divisible by both numbers.
Least Common Multiple (LCM) of 76 and 79 is 6004.
LCM(76,79) = 6004
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 76 and 79. First we will calculate the prime factors of 76 and 79.
Prime Factorization of 76
2 | 76 |
2 | 38 |
19 | 19 |
1 |
Prime factors of 76 are 2,19. Prime factorization of 76 in exponential form is:
76 = 22×191
Prime Factorization of 79
79 | 79 |
1 |
Prime factors of 79 are 79. Prime factorization of 79 in exponential form is:
79 = 791
Now multiplying the highest exponent prime factors to calculate the LCM of 76 and 79.
LCM(76,79) = 22×191×791
LCM(76,79) = 6004
Factors of 76
List of positive integer factors of 76 that divides 76 without a remainder.
1, 2, 4, 19, 38, 76
Factors of 79
List of positive integer factors of 79 that divides 79 without a remainder.
1, 79
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 76 and 79, than apply into the LCM equation.
GCF(76,79) = 1
LCM(76,79) = ( 76 × 79) / 1
LCM(76,79) = 6004 / 1
LCM(76,79) = 6004
(i) The LCM of 79 and 76 is associative
LCM of 76 and 79 = LCM of 79 and 76
1. What is the LCM of 76 and 79?
Answer: LCM of 76 and 79 is 6004.
2. What are the Factors of 76?
Answer: Factors of 76 are 1, 2, 4, 19, 38, 76. There are 6 integers that are factors of 76. The greatest factor of 76 is 76.
3. What are the Factors of 79?
Answer: Factors of 79 are 1, 79. There are 2 integers that are factors of 79. The greatest factor of 79 is 79.
4. How to Find the LCM of 76 and 79?
Answer:
Least Common Multiple of 76 and 79 = 6004
Step 1: Find the prime factorization of 76
76 = 2 x 2 x 19
Step 2: Find the prime factorization of 79
79 = 79
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 6004 = 2 x 2 x 19 x 79
Step 4: Therefore, the least common multiple of 76 and 79 is 6004.