Created By : Jatin Gogia
Reviewed By : Rajasekhar Valipishetty
Last Updated : Apr 06, 2023
Free LCM Calculator determines the least common multiple (LCM) between 1688 and 1692 the smallest integer that is 714024 that is divisible by both numbers.
Least Common Multiple (LCM) of 1688 and 1692 is 714024.
LCM(1688,1692) = 714024
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 1688 and 1692. First we will calculate the prime factors of 1688 and 1692.
Prime Factorization of 1688
2 | 1688 |
2 | 844 |
2 | 422 |
211 | 211 |
1 |
Prime factors of 1688 are 2,211. Prime factorization of 1688 in exponential form is:
1688 = 23×2111
Prime Factorization of 1692
2 | 1692 |
2 | 846 |
3 | 423 |
3 | 141 |
47 | 47 |
1 |
Prime factors of 1692 are 2, 3,47. Prime factorization of 1692 in exponential form is:
1692 = 22×32×471
Now multiplying the highest exponent prime factors to calculate the LCM of 1688 and 1692.
LCM(1688,1692) = 23×32×471×2111
LCM(1688,1692) = 714024
Factors of 1688
List of positive integer factors of 1688 that divides 1688 without a remainder.
1, 2, 4, 8, 211, 422, 844, 1688
Factors of 1692
List of positive integer factors of 1692 that divides 1692 without a remainder.
1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692
The formula of LCM is LCM(a,b) = ( a × b) / GCF(a,b).
We need to calculate greatest common factor 1688 and 1692, than apply into the LCM equation.
GCF(1688,1692) = 4
LCM(1688,1692) = ( 1688 × 1692) / 4
LCM(1688,1692) = 2856096 / 4
LCM(1688,1692) = 714024
(i) The LCM of 1692 and 1688 is associative
LCM of 1688 and 1692 = LCM of 1692 and 1688
1. What is the LCM of 1688 and 1692?
Answer: LCM of 1688 and 1692 is 714024.
2. What are the Factors of 1688?
Answer: Factors of 1688 are 1, 2, 4, 8, 211, 422, 844, 1688. There are 8 integers that are factors of 1688. The greatest factor of 1688 is 1688.
3. What are the Factors of 1692?
Answer: Factors of 1692 are 1, 2, 3, 4, 6, 9, 12, 18, 36, 47, 94, 141, 188, 282, 423, 564, 846, 1692. There are 18 integers that are factors of 1692. The greatest factor of 1692 is 1692.
4. How to Find the LCM of 1688 and 1692?
Answer:
Least Common Multiple of 1688 and 1692 = 714024
Step 1: Find the prime factorization of 1688
1688 = 2 x 2 x 2 x 211
Step 2: Find the prime factorization of 1692
1692 = 2 x 2 x 3 x 3 x 47
Step 3: Multiply each factor the greater number of times it occurs in steps i) or ii) above to find the lcm:
LCM = 714024 = 2 x 2 x 2 x 3 x 3 x 47 x 211
Step 4: Therefore, the least common multiple of 1688 and 1692 is 714024.