Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 440 and 442 the smallest integer that is 97240 that is divisible by both numbers.
Least Common Multiple (LCM) of 440 and 442 is 97240.
LCM(440,442) = 97240
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 440 and 442. First we will calculate the prime factors of 440 and 442.
Prime Factorization of 440
2 | 440 |
2 | 220 |
2 | 110 |
5 | 55 |
11 | 11 |
1 |
Prime factors of 440 are 2, 5,11. Prime factorization of 440 in exponential form is:
440 = 23×51×111
Prime Factorization of 442
2 | 442 |
13 | 221 |
17 | 17 |
1 |
Prime factors of 442 are 2, 13,17. Prime factorization of 442 in exponential form is:
442 = 21×131×171
Now multiplying the highest exponent prime factors to calculate the LCM of 440 and 442.
LCM(440,442) = 23×51×111×131×171
LCM(440,442) = 97240
Factors of 440
List of positive integer factors of 440 that divides 440 without a remainder.
1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440
Factors of 442
List of positive integer factors of 442 that divides 442 without a remainder.
1, 2, 13, 17, 26, 34, 221, 442
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 440 and 442, than apply into the LCM equation.
GCF(440,442) = 2
LCM(440,442) = ( 440 × 442) / 2
LCM(440,442) = 194480 / 2
LCM(440,442) = 97240
(i) The LCM of 442 and 440 is associative
LCM of 440 and 442 = LCM of 442 and 440
1. What is the LCM of 440 and 442?
Answer: LCM of 440 and 442 is 97240.
2. What are the Factors of 440?
Answer: Factors of 440 are 1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440. There are 16 integers that are factors of 440. The greatest factor of 440 is 440.
3. What are the Factors of 442?
Answer: Factors of 442 are 1, 2, 13, 17, 26, 34, 221, 442. There are 8 integers that are factors of 442. The greatest factor of 442 is 442.
4. How to Find the LCM of 440 and 442?
Answer:
Least Common Multiple of 440 and 442 = 97240
Step 1: Find the prime factorization of 440
440 = 2 x 2 x 2 x 5 x 11
Step 2: Find the prime factorization of 442
442 = 2 x 13 x 17
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 97240 = 2 x 2 x 2 x 5 x 11 x 13 x 17
Step 4: Therefore, the least common multiple of 440 and 442 is 97240.