Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1425 and 1430 the smallest integer that is 407550 that is divisible by both numbers.
Least Common Multiple (LCM) of 1425 and 1430 is 407550.
LCM(1425,1430) = 407550
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 1425 and 1430. First we will calculate the prime factors of 1425 and 1430.
Prime Factorization of 1425
3 | 1425 |
5 | 475 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 1425 are 3, 5,19. Prime factorization of 1425 in exponential form is:
1425 = 31×52×191
Prime Factorization of 1430
2 | 1430 |
5 | 715 |
11 | 143 |
13 | 13 |
1 |
Prime factors of 1430 are 2, 5, 11,13. Prime factorization of 1430 in exponential form is:
1430 = 21×51×111×131
Now multiplying the highest exponent prime factors to calculate the LCM of 1425 and 1430.
LCM(1425,1430) = 21×31×52×111×131×191
LCM(1425,1430) = 407550
Factors of 1425
List of positive integer factors of 1425 that divides 1425 without a remainder.
1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425
Factors of 1430
List of positive integer factors of 1430 that divides 1430 without a remainder.
1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1425 and 1430, than apply into the LCM equation.
GCF(1425,1430) = 5
LCM(1425,1430) = ( 1425 × 1430) / 5
LCM(1425,1430) = 2037750 / 5
LCM(1425,1430) = 407550
(i) The LCM of 1430 and 1425 is associative
LCM of 1425 and 1430 = LCM of 1430 and 1425
1. What is the LCM of 1425 and 1430?
Answer: LCM of 1425 and 1430 is 407550.
2. What are the Factors of 1425?
Answer: Factors of 1425 are 1, 3, 5, 15, 19, 25, 57, 75, 95, 285, 475, 1425. There are 12 integers that are factors of 1425. The greatest factor of 1425 is 1425.
3. What are the Factors of 1430?
Answer: Factors of 1430 are 1, 2, 5, 10, 11, 13, 22, 26, 55, 65, 110, 130, 143, 286, 715, 1430. There are 16 integers that are factors of 1430. The greatest factor of 1430 is 1430.
4. How to Find the LCM of 1425 and 1430?
Answer:
Least Common Multiple of 1425 and 1430 = 407550
Step 1: Find the prime factorization of 1425
1425 = 3 x 5 x 5 x 19
Step 2: Find the prime factorization of 1430
1430 = 2 x 5 x 11 x 13
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 407550 = 2 x 3 x 5 x 5 x 11 x 13 x 19
Step 4: Therefore, the least common multiple of 1425 and 1430 is 407550.