Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 81754 and 81760 the smallest integer that is 3342103520 that is divisible by both numbers.
Least Common Multiple (LCM) of 81754 and 81760 is 3342103520.
LCM(81754,81760) = 3342103520
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 81754 and 81760. First we will calculate the prime factors of 81754 and 81760.
Prime Factorization of 81754
2 | 81754 |
41 | 40877 |
997 | 997 |
1 |
Prime factors of 81754 are 2, 41,997. Prime factorization of 81754 in exponential form is:
81754 = 21×411×9971
Prime Factorization of 81760
2 | 81760 |
2 | 40880 |
2 | 20440 |
2 | 10220 |
2 | 5110 |
5 | 2555 |
7 | 511 |
73 | 73 |
1 |
Prime factors of 81760 are 2, 5, 7,73. Prime factorization of 81760 in exponential form is:
81760 = 25×51×71×731
Now multiplying the highest exponent prime factors to calculate the LCM of 81754 and 81760.
LCM(81754,81760) = 25×51×71×411×731×9971
LCM(81754,81760) = 3342103520
Factors of 81754
List of positive integer factors of 81754 that divides 81754 without a remainder.
1, 2, 41, 82, 997, 1994, 40877, 81754
Factors of 81760
List of positive integer factors of 81760 that divides 81760 without a remainder.
1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 73, 80, 112, 140, 146, 160, 224, 280, 292, 365, 511, 560, 584, 730, 1022, 1120, 1168, 1460, 2044, 2336, 2555, 2920, 4088, 5110, 5840, 8176, 10220, 11680, 16352, 20440, 40880, 81760
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 81754 and 81760, than apply into the LCM equation.
GCF(81754,81760) = 2
LCM(81754,81760) = ( 81754 × 81760) / 2
LCM(81754,81760) = 6684207040 / 2
LCM(81754,81760) = 3342103520
(i) The LCM of 81760 and 81754 is associative
LCM of 81754 and 81760 = LCM of 81760 and 81754
1. What is the LCM of 81754 and 81760?
Answer: LCM of 81754 and 81760 is 3342103520.
2. What are the Factors of 81754?
Answer: Factors of 81754 are 1, 2, 41, 82, 997, 1994, 40877, 81754. There are 8 integers that are factors of 81754. The greatest factor of 81754 is 81754.
3. What are the Factors of 81760?
Answer: Factors of 81760 are 1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 73, 80, 112, 140, 146, 160, 224, 280, 292, 365, 511, 560, 584, 730, 1022, 1120, 1168, 1460, 2044, 2336, 2555, 2920, 4088, 5110, 5840, 8176, 10220, 11680, 16352, 20440, 40880, 81760. There are 48 integers that are factors of 81760. The greatest factor of 81760 is 81760.
4. How to Find the LCM of 81754 and 81760?
Answer:
Least Common Multiple of 81754 and 81760 = 3342103520
Step 1: Find the prime factorization of 81754
81754 = 2 x 41 x 997
Step 2: Find the prime factorization of 81760
81760 = 2 x 2 x 2 x 2 x 2 x 5 x 7 x 73
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 3342103520 = 2 x 2 x 2 x 2 x 2 x 5 x 7 x 41 x 73 x 997
Step 4: Therefore, the least common multiple of 81754 and 81760 is 3342103520.