Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 6840 and 6846 the smallest integer that is 7804440 that is divisible by both numbers.
Least Common Multiple (LCM) of 6840 and 6846 is 7804440.
LCM(6840,6846) = 7804440
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 6840 and 6846. First we will calculate the prime factors of 6840 and 6846.
Prime Factorization of 6840
2 | 6840 |
2 | 3420 |
2 | 1710 |
3 | 855 |
3 | 285 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 6840 are 2, 3, 5,19. Prime factorization of 6840 in exponential form is:
6840 = 23×32×51×191
Prime Factorization of 6846
2 | 6846 |
3 | 3423 |
7 | 1141 |
163 | 163 |
1 |
Prime factors of 6846 are 2, 3, 7,163. Prime factorization of 6846 in exponential form is:
6846 = 21×31×71×1631
Now multiplying the highest exponent prime factors to calculate the LCM of 6840 and 6846.
LCM(6840,6846) = 23×32×51×71×191×1631
LCM(6840,6846) = 7804440
Factors of 6840
List of positive integer factors of 6840 that divides 6840 without a remainder.
1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3420, 6840
Factors of 6846
List of positive integer factors of 6846 that divides 6846 without a remainder.
1, 2, 3, 6, 7, 14, 21, 42, 163, 326, 489, 978, 1141, 2282, 3423, 6846
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 6840 and 6846, than apply into the LCM equation.
GCF(6840,6846) = 6
LCM(6840,6846) = ( 6840 × 6846) / 6
LCM(6840,6846) = 46826640 / 6
LCM(6840,6846) = 7804440
(i) The LCM of 6846 and 6840 is associative
LCM of 6840 and 6846 = LCM of 6846 and 6840
1. What is the LCM of 6840 and 6846?
Answer: LCM of 6840 and 6846 is 7804440.
2. What are the Factors of 6840?
Answer: Factors of 6840 are 1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 18, 19, 20, 24, 30, 36, 38, 40, 45, 57, 60, 72, 76, 90, 95, 114, 120, 152, 171, 180, 190, 228, 285, 342, 360, 380, 456, 570, 684, 760, 855, 1140, 1368, 1710, 2280, 3420, 6840. There are 48 integers that are factors of 6840. The greatest factor of 6840 is 6840.
3. What are the Factors of 6846?
Answer: Factors of 6846 are 1, 2, 3, 6, 7, 14, 21, 42, 163, 326, 489, 978, 1141, 2282, 3423, 6846. There are 16 integers that are factors of 6846. The greatest factor of 6846 is 6846.
4. How to Find the LCM of 6840 and 6846?
Answer:
Least Common Multiple of 6840 and 6846 = 7804440
Step 1: Find the prime factorization of 6840
6840 = 2 x 2 x 2 x 3 x 3 x 5 x 19
Step 2: Find the prime factorization of 6846
6846 = 2 x 3 x 7 x 163
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 7804440 = 2 x 2 x 2 x 3 x 3 x 5 x 7 x 19 x 163
Step 4: Therefore, the least common multiple of 6840 and 6846 is 7804440.