Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 21470 and 21476 the smallest integer that is 230544860 that is divisible by both numbers.
Least Common Multiple (LCM) of 21470 and 21476 is 230544860.
LCM(21470,21476) = 230544860
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 21470 and 21476. First we will calculate the prime factors of 21470 and 21476.
Prime Factorization of 21470
2 | 21470 |
5 | 10735 |
19 | 2147 |
113 | 113 |
1 |
Prime factors of 21470 are 2, 5, 19,113. Prime factorization of 21470 in exponential form is:
21470 = 21×51×191×1131
Prime Factorization of 21476
2 | 21476 |
2 | 10738 |
7 | 5369 |
13 | 767 |
59 | 59 |
1 |
Prime factors of 21476 are 2, 7, 13,59. Prime factorization of 21476 in exponential form is:
21476 = 22×71×131×591
Now multiplying the highest exponent prime factors to calculate the LCM of 21470 and 21476.
LCM(21470,21476) = 22×51×71×131×191×591×1131
LCM(21470,21476) = 230544860
Factors of 21470
List of positive integer factors of 21470 that divides 21470 without a remainder.
1, 2, 5, 10, 19, 38, 95, 113, 190, 226, 565, 1130, 2147, 4294, 10735, 21470
Factors of 21476
List of positive integer factors of 21476 that divides 21476 without a remainder.
1, 2, 4, 7, 13, 14, 26, 28, 52, 59, 91, 118, 182, 236, 364, 413, 767, 826, 1534, 1652, 3068, 5369, 10738, 21476
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 21470 and 21476, than apply into the LCM equation.
GCF(21470,21476) = 2
LCM(21470,21476) = ( 21470 × 21476) / 2
LCM(21470,21476) = 461089720 / 2
LCM(21470,21476) = 230544860
(i) The LCM of 21476 and 21470 is associative
LCM of 21470 and 21476 = LCM of 21476 and 21470
1. What is the LCM of 21470 and 21476?
Answer: LCM of 21470 and 21476 is 230544860.
2. What are the Factors of 21470?
Answer: Factors of 21470 are 1, 2, 5, 10, 19, 38, 95, 113, 190, 226, 565, 1130, 2147, 4294, 10735, 21470. There are 16 integers that are factors of 21470. The greatest factor of 21470 is 21470.
3. What are the Factors of 21476?
Answer: Factors of 21476 are 1, 2, 4, 7, 13, 14, 26, 28, 52, 59, 91, 118, 182, 236, 364, 413, 767, 826, 1534, 1652, 3068, 5369, 10738, 21476. There are 24 integers that are factors of 21476. The greatest factor of 21476 is 21476.
4. How to Find the LCM of 21470 and 21476?
Answer:
Least Common Multiple of 21470 and 21476 = 230544860
Step 1: Find the prime factorization of 21470
21470 = 2 x 5 x 19 x 113
Step 2: Find the prime factorization of 21476
21476 = 2 x 2 x 7 x 13 x 59
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 230544860 = 2 x 2 x 5 x 7 x 13 x 19 x 59 x 113
Step 4: Therefore, the least common multiple of 21470 and 21476 is 230544860.