Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 321420 and 321425 the smallest integer that is 20662484700 that is divisible by both numbers.
Least Common Multiple (LCM) of 321420 and 321425 is 20662484700.
LCM(321420,321425) = 20662484700
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 321420 and 321425. First we will calculate the prime factors of 321420 and 321425.
Prime Factorization of 321420
2 | 321420 |
2 | 160710 |
3 | 80355 |
5 | 26785 |
11 | 5357 |
487 | 487 |
1 |
Prime factors of 321420 are 2, 3, 5, 11,487. Prime factorization of 321420 in exponential form is:
321420 = 22×31×51×111×4871
Prime Factorization of 321425
5 | 321425 |
5 | 64285 |
13 | 12857 |
23 | 989 |
43 | 43 |
1 |
Prime factors of 321425 are 5, 13, 23,43. Prime factorization of 321425 in exponential form is:
321425 = 52×131×231×431
Now multiplying the highest exponent prime factors to calculate the LCM of 321420 and 321425.
LCM(321420,321425) = 22×31×52×111×131×231×431×4871
LCM(321420,321425) = 20662484700
Factors of 321420
List of positive integer factors of 321420 that divides 321420 without a remainder.
1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 487, 660, 974, 1461, 1948, 2435, 2922, 4870, 5357, 5844, 7305, 9740, 10714, 14610, 16071, 21428, 26785, 29220, 32142, 53570, 64284, 80355, 107140, 160710, 321420
Factors of 321425
List of positive integer factors of 321425 that divides 321425 without a remainder.
1, 5, 13, 23, 25, 43, 65, 115, 215, 299, 325, 559, 575, 989, 1075, 1495, 2795, 4945, 7475, 12857, 13975, 24725, 64285, 321425
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 321420 and 321425, than apply into the LCM equation.
GCF(321420,321425) = 5
LCM(321420,321425) = ( 321420 × 321425) / 5
LCM(321420,321425) = 103312423500 / 5
LCM(321420,321425) = 20662484700
(i) The LCM of 321425 and 321420 is associative
LCM of 321420 and 321425 = LCM of 321425 and 321420
1. What is the LCM of 321420 and 321425?
Answer: LCM of 321420 and 321425 is 20662484700.
2. What are the Factors of 321420?
Answer: Factors of 321420 are 1, 2, 3, 4, 5, 6, 10, 11, 12, 15, 20, 22, 30, 33, 44, 55, 60, 66, 110, 132, 165, 220, 330, 487, 660, 974, 1461, 1948, 2435, 2922, 4870, 5357, 5844, 7305, 9740, 10714, 14610, 16071, 21428, 26785, 29220, 32142, 53570, 64284, 80355, 107140, 160710, 321420. There are 48 integers that are factors of 321420. The greatest factor of 321420 is 321420.
3. What are the Factors of 321425?
Answer: Factors of 321425 are 1, 5, 13, 23, 25, 43, 65, 115, 215, 299, 325, 559, 575, 989, 1075, 1495, 2795, 4945, 7475, 12857, 13975, 24725, 64285, 321425. There are 24 integers that are factors of 321425. The greatest factor of 321425 is 321425.
4. How to Find the LCM of 321420 and 321425?
Answer:
Least Common Multiple of 321420 and 321425 = 20662484700
Step 1: Find the prime factorization of 321420
321420 = 2 x 2 x 3 x 5 x 11 x 487
Step 2: Find the prime factorization of 321425
321425 = 5 x 5 x 13 x 23 x 43
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 20662484700 = 2 x 2 x 3 x 5 x 5 x 11 x 13 x 23 x 43 x 487
Step 4: Therefore, the least common multiple of 321420 and 321425 is 20662484700.