Least common multiple exercise 2 | Factors and multiples | Pre-Algebra | Khan Academy
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- čas přidán 23. 07. 2013
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Here's a lcm (least common multiple) example exercise that's a little bit harder, but totally doable. Again, we'll use the prime factorization approach.
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That helped so much I was worried l was going to fail
THANK YOU
:)
I can’t understand some thanku for teaching me
good job
Perfect
HEBA ALHARBI
you now remeber this comment ( i think)
What's the lcm of two prime numbers? For example, 11 and 19.
69
No, it's 209.
I don't understand because it's not my language.😁
Well go Khan Academy
U can learn in ur languege
But won't the least common multiple of all numbers be - 00 (negative infinite). Negative infinite is the smallest value and every single number is divisible by it.
Um... on that note, it can also be positive infinity. What is infinity? Infinity is a number? Nope. Well what's the biggest number? A googol? What about a googol plus one? Huh? Infinity isn't a number, it's how many numbers there are. Look at this:
The lcm of 11 and 19 is 209
The lcm of 20 and 13 is 260.
They are all bigger than the numbers. So, um, the lcm of all numbers is infinity, but in maths when something is infinity, it basically doesn't exist. So, there is no such thing.
Negative infinite can be multiplied into anything it’s not a number and would just get smaller