Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 7765 and 7770 the smallest integer that is 12066810 that is divisible by both numbers.
Least Common Multiple (LCM) of 7765 and 7770 is 12066810.
LCM(7765,7770) = 12066810
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 7765 and 7770. First we will calculate the prime factors of 7765 and 7770.
Prime Factorization of 7765
5 | 7765 |
1553 | 1553 |
1 |
Prime factors of 7765 are 5,1553. Prime factorization of 7765 in exponential form is:
7765 = 51×15531
Prime Factorization of 7770
2 | 7770 |
3 | 3885 |
5 | 1295 |
7 | 259 |
37 | 37 |
1 |
Prime factors of 7770 are 2, 3, 5, 7,37. Prime factorization of 7770 in exponential form is:
7770 = 21×31×51×71×371
Now multiplying the highest exponent prime factors to calculate the LCM of 7765 and 7770.
LCM(7765,7770) = 21×31×51×71×371×15531
LCM(7765,7770) = 12066810
Factors of 7765
List of positive integer factors of 7765 that divides 7765 without a remainder.
1, 5, 1553, 7765
Factors of 7770
List of positive integer factors of 7770 that divides 7770 without a remainder.
1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 70, 74, 105, 111, 185, 210, 222, 259, 370, 518, 555, 777, 1110, 1295, 1554, 2590, 3885, 7770
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 7765 and 7770, than apply into the LCM equation.
GCF(7765,7770) = 5
LCM(7765,7770) = ( 7765 × 7770) / 5
LCM(7765,7770) = 60334050 / 5
LCM(7765,7770) = 12066810
(i) The LCM of 7770 and 7765 is associative
LCM of 7765 and 7770 = LCM of 7770 and 7765
1. What is the LCM of 7765 and 7770?
Answer: LCM of 7765 and 7770 is 12066810.
2. What are the Factors of 7765?
Answer: Factors of 7765 are 1, 5, 1553, 7765. There are 4 integers that are factors of 7765. The greatest factor of 7765 is 7765.
3. What are the Factors of 7770?
Answer: Factors of 7770 are 1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 37, 42, 70, 74, 105, 111, 185, 210, 222, 259, 370, 518, 555, 777, 1110, 1295, 1554, 2590, 3885, 7770. There are 32 integers that are factors of 7770. The greatest factor of 7770 is 7770.
4. How to Find the LCM of 7765 and 7770?
Answer:
Least Common Multiple of 7765 and 7770 = 12066810
Step 1: Find the prime factorization of 7765
7765 = 5 x 1553
Step 2: Find the prime factorization of 7770
7770 = 2 x 3 x 5 x 7 x 37
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 12066810 = 2 x 3 x 5 x 7 x 37 x 1553
Step 4: Therefore, the least common multiple of 7765 and 7770 is 12066810.