Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 771 and 777 the smallest integer that is 199689 that is divisible by both numbers.
Least Common Multiple (LCM) of 771 and 777 is 199689.
LCM(771,777) = 199689
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 771 and 777. First we will calculate the prime factors of 771 and 777.
Prime Factorization of 771
3 | 771 |
257 | 257 |
1 |
Prime factors of 771 are 3,257. Prime factorization of 771 in exponential form is:
771 = 31×2571
Prime Factorization of 777
3 | 777 |
7 | 259 |
37 | 37 |
1 |
Prime factors of 777 are 3, 7,37. Prime factorization of 777 in exponential form is:
777 = 31×71×371
Now multiplying the highest exponent prime factors to calculate the LCM of 771 and 777.
LCM(771,777) = 31×71×371×2571
LCM(771,777) = 199689
Factors of 771
List of positive integer factors of 771 that divides 771 without a remainder.
1, 3, 257, 771
Factors of 777
List of positive integer factors of 777 that divides 777 without a remainder.
1, 3, 7, 21, 37, 111, 259, 777
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 771 and 777, than apply into the LCM equation.
GCF(771,777) = 3
LCM(771,777) = ( 771 × 777) / 3
LCM(771,777) = 599067 / 3
LCM(771,777) = 199689
(i) The LCM of 777 and 771 is associative
LCM of 771 and 777 = LCM of 777 and 771
1. What is the LCM of 771 and 777?
Answer: LCM of 771 and 777 is 199689.
2. What are the Factors of 771?
Answer: Factors of 771 are 1, 3, 257, 771. There are 4 integers that are factors of 771. The greatest factor of 771 is 771.
3. What are the Factors of 777?
Answer: Factors of 777 are 1, 3, 7, 21, 37, 111, 259, 777. There are 8 integers that are factors of 777. The greatest factor of 777 is 777.
4. How to Find the LCM of 771 and 777?
Answer:
Least Common Multiple of 771 and 777 = 199689
Step 1: Find the prime factorization of 771
771 = 3 x 257
Step 2: Find the prime factorization of 777
777 = 3 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 = 199689 = 3 x 7 x 37 x 257
Step 4: Therefore, the least common multiple of 771 and 777 is 199689.