Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 3420 and 3424 the smallest integer that is 2927520 that is divisible by both numbers.
Least Common Multiple (LCM) of 3420 and 3424 is 2927520.
LCM(3420,3424) = 2927520
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 3420 and 3424. First we will calculate the prime factors of 3420 and 3424.
Prime Factorization of 3420
2 | 3420 |
2 | 1710 |
3 | 855 |
3 | 285 |
5 | 95 |
19 | 19 |
1 |
Prime factors of 3420 are 2, 3, 5,19. Prime factorization of 3420 in exponential form is:
3420 = 22×32×51×191
Prime Factorization of 3424
2 | 3424 |
2 | 1712 |
2 | 856 |
2 | 428 |
2 | 214 |
107 | 107 |
1 |
Prime factors of 3424 are 2,107. Prime factorization of 3424 in exponential form is:
3424 = 25×1071
Now multiplying the highest exponent prime factors to calculate the LCM of 3420 and 3424.
LCM(3420,3424) = 25×32×51×191×1071
LCM(3420,3424) = 2927520
Factors of 3420
List of positive integer factors of 3420 that divides 3420 without a remainder.
1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420
Factors of 3424
List of positive integer factors of 3424 that divides 3424 without a remainder.
1, 2, 4, 8, 16, 32, 107, 214, 428, 856, 1712, 3424
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 3420 and 3424, than apply into the LCM equation.
GCF(3420,3424) = 4
LCM(3420,3424) = ( 3420 × 3424) / 4
LCM(3420,3424) = 11710080 / 4
LCM(3420,3424) = 2927520
(i) The LCM of 3424 and 3420 is associative
LCM of 3420 and 3424 = LCM of 3424 and 3420
1. What is the LCM of 3420 and 3424?
Answer: LCM of 3420 and 3424 is 2927520.
2. What are the Factors of 3420?
Answer: Factors of 3420 are 1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 19, 20, 30, 36, 38, 45, 57, 60, 76, 90, 95, 114, 171, 180, 190, 228, 285, 342, 380, 570, 684, 855, 1140, 1710, 3420. There are 36 integers that are factors of 3420. The greatest factor of 3420 is 3420.
3. What are the Factors of 3424?
Answer: Factors of 3424 are 1, 2, 4, 8, 16, 32, 107, 214, 428, 856, 1712, 3424. There are 12 integers that are factors of 3424. The greatest factor of 3424 is 3424.
4. How to Find the LCM of 3420 and 3424?
Answer:
Least Common Multiple of 3420 and 3424 = 2927520
Step 1: Find the prime factorization of 3420
3420 = 2 x 2 x 3 x 3 x 5 x 19
Step 2: Find the prime factorization of 3424
3424 = 2 x 2 x 2 x 2 x 2 x 107
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 2927520 = 2 x 2 x 2 x 2 x 2 x 3 x 3 x 5 x 19 x 107
Step 4: Therefore, the least common multiple of 3420 and 3424 is 2927520.