Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 442 and 447 the smallest integer that is 197574 that is divisible by both numbers.
Least Common Multiple (LCM) of 442 and 447 is 197574.
LCM(442,447) = 197574
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 442 and 447. First we will calculate the prime factors of 442 and 447.
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
Prime Factorization of 447
3 | 447 |
149 | 149 |
1 |
Prime factors of 447 are 3,149. Prime factorization of 447 in exponential form is:
447 = 31×1491
Now multiplying the highest exponent prime factors to calculate the LCM of 442 and 447.
LCM(442,447) = 21×31×131×171×1491
LCM(442,447) = 197574
Factors of 442
List of positive integer factors of 442 that divides 442 without a remainder.
1, 2, 13, 17, 26, 34, 221, 442
Factors of 447
List of positive integer factors of 447 that divides 447 without a remainder.
1, 3, 149, 447
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 442 and 447, than apply into the LCM equation.
GCF(442,447) = 1
LCM(442,447) = ( 442 × 447) / 1
LCM(442,447) = 197574 / 1
LCM(442,447) = 197574
(i) The LCM of 447 and 442 is associative
LCM of 442 and 447 = LCM of 447 and 442
1. What is the LCM of 442 and 447?
Answer: LCM of 442 and 447 is 197574.
2. 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.
3. What are the Factors of 447?
Answer: Factors of 447 are 1, 3, 149, 447. There are 4 integers that are factors of 447. The greatest factor of 447 is 447.
4. How to Find the LCM of 442 and 447?
Answer:
Least Common Multiple of 442 and 447 = 197574
Step 1: Find the prime factorization of 442
442 = 2 x 13 x 17
Step 2: Find the prime factorization of 447
447 = 3 x 149
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 197574 = 2 x 3 x 13 x 17 x 149
Step 4: Therefore, the least common multiple of 442 and 447 is 197574.