Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 221864 and 221872 the smallest integer that is 6153176176 that is divisible by both numbers.
Least Common Multiple (LCM) of 221864 and 221872 is 6153176176.
LCM(221864,221872) = 6153176176
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 221864 and 221872. First we will calculate the prime factors of 221864 and 221872.
Prime Factorization of 221864
2 | 221864 |
2 | 110932 |
2 | 55466 |
27733 | 27733 |
1 |
Prime factors of 221864 are 2,27733. Prime factorization of 221864 in exponential form is:
221864 = 23×277331
Prime Factorization of 221872
2 | 221872 |
2 | 110936 |
2 | 55468 |
2 | 27734 |
7 | 13867 |
7 | 1981 |
283 | 283 |
1 |
Prime factors of 221872 are 2, 7,283. Prime factorization of 221872 in exponential form is:
221872 = 24×72×2831
Now multiplying the highest exponent prime factors to calculate the LCM of 221864 and 221872.
LCM(221864,221872) = 24×72×2831×277331
LCM(221864,221872) = 6153176176
Factors of 221864
List of positive integer factors of 221864 that divides 221864 without a remainder.
1, 2, 4, 8, 27733, 55466, 110932, 221864
Factors of 221872
List of positive integer factors of 221872 that divides 221872 without a remainder.
1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 283, 392, 566, 784, 1132, 1981, 2264, 3962, 4528, 7924, 13867, 15848, 27734, 31696, 55468, 110936, 221872
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 221864 and 221872, than apply into the LCM equation.
GCF(221864,221872) = 8
LCM(221864,221872) = ( 221864 × 221872) / 8
LCM(221864,221872) = 49225409408 / 8
LCM(221864,221872) = 6153176176
(i) The LCM of 221872 and 221864 is associative
LCM of 221864 and 221872 = LCM of 221872 and 221864
1. What is the LCM of 221864 and 221872?
Answer: LCM of 221864 and 221872 is 6153176176.
2. What are the Factors of 221864?
Answer: Factors of 221864 are 1, 2, 4, 8, 27733, 55466, 110932, 221864. There are 8 integers that are factors of 221864. The greatest factor of 221864 is 221864.
3. What are the Factors of 221872?
Answer: Factors of 221872 are 1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 283, 392, 566, 784, 1132, 1981, 2264, 3962, 4528, 7924, 13867, 15848, 27734, 31696, 55468, 110936, 221872. There are 30 integers that are factors of 221872. The greatest factor of 221872 is 221872.
4. How to Find the LCM of 221864 and 221872?
Answer:
Least Common Multiple of 221864 and 221872 = 6153176176
Step 1: Find the prime factorization of 221864
221864 = 2 x 2 x 2 x 27733
Step 2: Find the prime factorization of 221872
221872 = 2 x 2 x 2 x 2 x 7 x 7 x 283
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 6153176176 = 2 x 2 x 2 x 2 x 7 x 7 x 283 x 27733
Step 4: Therefore, the least common multiple of 221864 and 221872 is 6153176176.