Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7615 and 7620 the smallest integer that is 11605260 that is divisible by both numbers.
Least Common Multiple (LCM) of 7615 and 7620 is 11605260.
LCM(7615,7620) = 11605260
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 7615 and 7620. First we will calculate the prime factors of 7615 and 7620.
Prime Factorization of 7615
5 | 7615 |
1523 | 1523 |
1 |
Prime factors of 7615 are 5,1523. Prime factorization of 7615 in exponential form is:
7615 = 51×15231
Prime Factorization of 7620
2 | 7620 |
2 | 3810 |
3 | 1905 |
5 | 635 |
127 | 127 |
1 |
Prime factors of 7620 are 2, 3, 5,127. Prime factorization of 7620 in exponential form is:
7620 = 22×31×51×1271
Now multiplying the highest exponent prime factors to calculate the LCM of 7615 and 7620.
LCM(7615,7620) = 22×31×51×1271×15231
LCM(7615,7620) = 11605260
Factors of 7615
List of positive integer factors of 7615 that divides 7615 without a remainder.
1, 5, 1523, 7615
Factors of 7620
List of positive integer factors of 7620 that divides 7620 without a remainder.
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 3810, 7620
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7615 and 7620, than apply into the LCM equation.
GCF(7615,7620) = 5
LCM(7615,7620) = ( 7615 × 7620) / 5
LCM(7615,7620) = 58026300 / 5
LCM(7615,7620) = 11605260
(i) The LCM of 7620 and 7615 is associative
LCM of 7615 and 7620 = LCM of 7620 and 7615
1. What is the LCM of 7615 and 7620?
Answer: LCM of 7615 and 7620 is 11605260.
2. What are the Factors of 7615?
Answer: Factors of 7615 are 1, 5, 1523, 7615. There are 4 integers that are factors of 7615. The greatest factor of 7615 is 7615.
3. What are the Factors of 7620?
Answer: Factors of 7620 are 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 127, 254, 381, 508, 635, 762, 1270, 1524, 1905, 2540, 3810, 7620. There are 24 integers that are factors of 7620. The greatest factor of 7620 is 7620.
4. How to Find the LCM of 7615 and 7620?
Answer:
Least Common Multiple of 7615 and 7620 = 11605260
Step 1: Find the prime factorization of 7615
7615 = 5 x 1523
Step 2: Find the prime factorization of 7620
7620 = 2 x 2 x 3 x 5 x 127
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 11605260 = 2 x 2 x 3 x 5 x 127 x 1523
Step 4: Therefore, the least common multiple of 7615 and 7620 is 11605260.