0
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the highest amount of each factor.
2 x 3 x 5 x 7 = 210, the LCM
Wiki User
∙ 6y ago
Add your answer:
Earn +20 pts
How do you work out smallest number divisible by numbers 1 to 12?
Do The LCM Least Common Multiple
What is the common multiple of 120 and 149?
There are many common multiples of 120 and 149. A common multiple is simply a multiple of both numbers. The least common multiple is 120x149, since 149 is prime. (Note: this trick doesn't work on all pairs of number. Although the product is always a multiple, it's not the least common multiple.)
How does least common multiple work?
Lowest common multiple, also known as least common multiple, or LCM, is found by finding the, least common multiple. For example, if you have the numbers 2, 4, and 8, and you want to find the LCM, you could start by seeing if any of the numbers fit into the other numbers. 2 goes into 4 two times, and into 8 four times. 4 also goes into 8 two times, because of this, the greatest common multiple would be 8. lets find the LCM of 4 and 9. You look and see that 4 doesnt go into 9 evenly, so another method you could use is to multiply both numbers together. 4x9= 36. 4 goes into 36 nine times and 9 goes into 36 four times. I know this doesn't exactly answer your question, but here are some good tips on finding the LCM
What is the common multiple 4 6 8 10 12 14 16 18 20 22?
Since we are talking about common multiple of all these numbers so, we can just find LCM of all these numbers and write down all the multiples of the LCM which are the common multiples of the given numbers. In order to find LCM of the given numbers we have to do a lot of calculation. So, finding the LCM requires a lot of work and therefore we have to to look for another method. If we multiply all these numbers then the result is a common multiple. So, answer is : 4 x 6 x 8 x 10 x ... x 22 = 40874803200 Also, if multiply the answer with any natural number we get a common multiple which means there exists infinite common multiples.
What is the LCM for 20 and 6 and 24?
Lowest common multiple would be 120. 20x6=120, 24x5=120. The number would have to end in a 0, because of the 20. The lowest would be 120. 60 wouldn't work because 24 can't divide into it. Hope this helps :D
What is the LCM of 2912?
At least two or more numbers must be given in order to work out their lowest common multiple
Can you always find the least common multiple of 2 numbers by multiplying them together?
No, that will not always work. in the case for some numbers it will work. for example 3 * 4 = 12. it works here. however if you do that for 30 and 20, you will get 600. the real lowest common multiple is 60. so it does not always work.
How do you work lowest common multiple?
One method is to factor each number, then multiply all of the factors - eliminating duplicates (factors that appear in both numbers).Here is one example:The numbers are (2x3) and (2x5).The common multiple is 2x3x5.Another example:The numbers are (23x32) and (22x34x5)The common multiple is 23x34x5. Note that for each prime number, I chose the largest power.How to find the Lowest common multipleyou get the set of you multiplesand you get the numbers that are repeated more than once and you lowest common multiple is the first number that is reapeated in your set. example 5, 10, 15, 20, 25, 30, 35, 40, 45, 50 10, 20, 30, 40, 50, 60, 70, 80, 90 All the numbers that are in bold are the numbers that are repeated twice as you see, 10 20 30 40 50 are the common multiples. 10 is the lowest number of all the other multiples and so 10 is your lowest common multiple.
How do you work out the lowest common factor of 5 and 6?
The lowest common factor of two or more numbers will always be 1.
What is the lowest multiple of 4 and 6?
To work out the lowest common multiple of two or more numbers we need to resolve each number to its prime factors. Then, we can multiply those factors together to give us the lowest common multpile. The factors of 4 are 2, 2 The factors of 4 are 2, 3 To be a multiple of 4, the lowest common multiple must have 2 and 2 in its list to be a multiple of 4, the lowest common multiple must have 2 and 3 in its list So, starting with the 4 we have (2, 2) As there is already a 2 in the mix, when we come to the 6 we only need to add the 3 making our list (2, 2, 3) If we multiple all these numbers together we get 12. 4 x 3 = 12 6 x 2 = 12
How do you find the lowest multiple?
Assume we want to find the lowest multiple of the numbers. The lowest multiple of the numbers is factored to primes with the maximum exponents. The other way of thinking of the lowest multiple is that these numbers divide the large number in order for the large number to be the lowest multiple. To help us understand how to work out with lowest multiple, let's consider this following example: Find the GCF of 4 and 6. Factor out each term to obtain: 4 = 2 x 2 6 = 2 x 3 Select the maximum number of primes that occur the most in one of the numbers. It's 4 that contains the factors 2². Then, since 6 is the only number that contains 3, keep that! Then, the lowest multiple is 2² x 3 = 12.
What is the least common multiple of 1650 and 3465?
The least common multiple (LCM) is often also called the lowest common multiple or smallest common multiple. Keep in mind that these different terms all refer to the same thing: the smallest positive integer which is a multiple of two or more numbers.The least common multiple of 5 and 465 is 465.
What is the least common multiples of 7 and 9?
The lowest common multiple of 7 and 9 is 63.Here's how to work it out:Multiples of 9 are: 9, 18, 27, 36, 45, 54, 63, 72, 81, 90, ...Multiples of 7 are: 7, 14, 21, 28, 35, 42, 49, 56, 63, 70, ...To find the lowest common multiple you look and find the smallest number that is a multiple of both numbers (in your case 7 and 9). So, in this case the lowest multiple they both have in common is 63.637963The Least Common Multiple (LCM) for 7 9 is 63.
What is the greatest common multiple of 9 and 27?
Common Multiples are multiples which are common to both numbers So Multiples of 9 are 9, 18, 27, 36 etc... Multiples of 27 are 27, 54, 81 etc... you can work out the least common multiple as 27 We can see that 9 is a factor of 27 so all multiples of 27 are a common multiple with 9. But as there is no upper limit we can not work out a greatest common multiple as they bigger they get the closer they get to infinity! You tend to work out Greatest Common Factor and Least Common Multiple with regards numbers.
How do you work out smallest number divisible by numbers 1 to 12?
Do The LCM Least Common Multiple
What is the common multiple of 120 and 149?
There are many common multiples of 120 and 149. A common multiple is simply a multiple of both numbers. The least common multiple is 120x149, since 149 is prime. (Note: this trick doesn't work on all pairs of number. Although the product is always a multiple, it's not the least common multiple.)
List all greatest common multiples of 98?
You need to have 2 numbers to work out the common multiples...The whole idea of common multiples is that they are multiples which both numbers share (or have in common).Also, the GREATEST multiple of anything is infinity
