Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 404 and 407 the smallest integer that is 164428 that is divisible by both numbers.
Least Common Multiple (LCM) of 404 and 407 is 164428.
LCM(404,407) = 164428
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 404 and 407. First we will calculate the prime factors of 404 and 407.
Prime Factorization of 404
2 | 404 |
2 | 202 |
101 | 101 |
1 |
Prime factors of 404 are 2,101. Prime factorization of 404 in exponential form is:
404 = 22×1011
Prime Factorization of 407
11 | 407 |
37 | 37 |
1 |
Prime factors of 407 are 11,37. Prime factorization of 407 in exponential form is:
407 = 111×371
Now multiplying the highest exponent prime factors to calculate the LCM of 404 and 407.
LCM(404,407) = 22×111×371×1011
LCM(404,407) = 164428
Factors of 404
List of positive integer factors of 404 that divides 404 without a remainder.
1, 2, 4, 101, 202, 404
Factors of 407
List of positive integer factors of 407 that divides 407 without a remainder.
1, 11, 37, 407
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 404 and 407, than apply into the LCM equation.
GCF(404,407) = 1
LCM(404,407) = ( 404 × 407) / 1
LCM(404,407) = 164428 / 1
LCM(404,407) = 164428
(i) The LCM of 407 and 404 is associative
LCM of 404 and 407 = LCM of 407 and 404
1. What is the LCM of 404 and 407?
Answer: LCM of 404 and 407 is 164428.
2. What are the Factors of 404?
Answer: Factors of 404 are 1, 2, 4, 101, 202, 404. There are 6 integers that are factors of 404. The greatest factor of 404 is 404.
3. What are the Factors of 407?
Answer: Factors of 407 are 1, 11, 37, 407. There are 4 integers that are factors of 407. The greatest factor of 407 is 407.
4. How to Find the LCM of 404 and 407?
Answer:
Least Common Multiple of 404 and 407 = 164428
Step 1: Find the prime factorization of 404
404 = 2 x 2 x 101
Step 2: Find the prime factorization of 407
407 = 11 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 = 164428 = 2 x 2 x 11 x 37 x 101
Step 4: Therefore, the least common multiple of 404 and 407 is 164428.