Alternatively, the lcm of 9 and 42 can be found using the prime factorization of 9 and 42: The prime factorization of 9 is: 3 x 3. The prime factorization of 42 is: 2 x 3 x 7. Eliminate the duplicate factors of the two lists, then multiply them once with the remaining factors of the lists to get lcm(9,9) = 126.
Whats the least common multiple of 9 and 42?
The LCM of 9 and 42 is 126.
What are the common multiples for 42?
The multiples of 42 are 42, 84, 126, 168, 210 and so on. The multiples of 14 are 14, 28, 42, 56, 70, 84, 98, 112, 126 and so on. The common multiples of 14 are 42, 84, 126 and so on.
What is the LCM of 3 and 5?
15
Answer: LCM of 3 and 5 is 15.
What are the divisors of 42?
The positive divisors of 42 are 1, 2, 3, 6, 7, 14, 21, 42.
Which is the correct number of multiples of 9?
Solution: The multiples of 9 are obtained by multiplying 9 with the natural numbers 1, 2, 3, 4, 5 … So, the first five multiples of 9 are 9, 18, 27, 36 and 45. Common Multiples
Which is the least common multiple of 6 and 9?
When we compare the two lists to see what they have in common, we get the answer to “What are the common multiples of 6 and 9?” 18, 36, 54, 72, etc. Since 18 is the first number they have in common, 18 is the least common multiple of 6 and 9.
What are the common multiples of two numbers?
Multiplesthat are common to two or more numbers are said to be common multiples. E.g. Multiples of 2 are 2, 4, 6, 8, 10, 12, 14, 16, 18, …. Multiples of 3 are 3, 6, 9, 12, 15, 18, …. So, common multiples of 2 and 3 are 6, 12, 18, …. Example 2.
What are the common multiples of 9 and 15?
The common multiples are in intervals of 45 (the least common multiple), so you can continue the green list above with more common multiples of 9 and 15 by simply adding 45 to the last number on the list. Need another answer? Get common multiples here:
