Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1407 and 1413 the smallest integer that is 662697 that is divisible by both numbers.
Least Common Multiple (LCM) of 1407 and 1413 is 662697.
LCM(1407,1413) = 662697
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 1407 and 1413. First we will calculate the prime factors of 1407 and 1413.
Prime Factorization of 1407
3 | 1407 |
7 | 469 |
67 | 67 |
1 |
Prime factors of 1407 are 3, 7,67. Prime factorization of 1407 in exponential form is:
1407 = 31×71×671
Prime Factorization of 1413
3 | 1413 |
3 | 471 |
157 | 157 |
1 |
Prime factors of 1413 are 3,157. Prime factorization of 1413 in exponential form is:
1413 = 32×1571
Now multiplying the highest exponent prime factors to calculate the LCM of 1407 and 1413.
LCM(1407,1413) = 32×71×671×1571
LCM(1407,1413) = 662697
Factors of 1407
List of positive integer factors of 1407 that divides 1407 without a remainder.
1, 3, 7, 21, 67, 201, 469, 1407
Factors of 1413
List of positive integer factors of 1413 that divides 1413 without a remainder.
1, 3, 9, 157, 471, 1413
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1407 and 1413, than apply into the LCM equation.
GCF(1407,1413) = 3
LCM(1407,1413) = ( 1407 × 1413) / 3
LCM(1407,1413) = 1988091 / 3
LCM(1407,1413) = 662697
(i) The LCM of 1413 and 1407 is associative
LCM of 1407 and 1413 = LCM of 1413 and 1407
1. What is the LCM of 1407 and 1413?
Answer: LCM of 1407 and 1413 is 662697.
2. What are the Factors of 1407?
Answer: Factors of 1407 are 1, 3, 7, 21, 67, 201, 469, 1407. There are 8 integers that are factors of 1407. The greatest factor of 1407 is 1407.
3. What are the Factors of 1413?
Answer: Factors of 1413 are 1, 3, 9, 157, 471, 1413. There are 6 integers that are factors of 1413. The greatest factor of 1413 is 1413.
4. How to Find the LCM of 1407 and 1413?
Answer:
Least Common Multiple of 1407 and 1413 = 662697
Step 1: Find the prime factorization of 1407
1407 = 3 x 7 x 67
Step 2: Find the prime factorization of 1413
1413 = 3 x 3 x 157
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 662697 = 3 x 3 x 7 x 67 x 157
Step 4: Therefore, the least common multiple of 1407 and 1413 is 662697.