00:01
To do this problem, we must list out the multiples of all three numbers.
00:05
So, 9 times 1, 9 times 2, 9 times 3, 9 times 4, 9 times 5, 9 times 6, 9 times 7, 9 times 8, 9 times 9 times 10.
00:26
We'll stop there.
00:28
And let's do 12, 12 times 1.
00:32
12 times 2, 12 times 3, 12 times 4, 12 times 5, 12 times 6, 12 times 7, 12 times 8, and 12 times 9.
00:56
All right, let's do number 15 here, 15 times 1, 15 times 2, 15 times 3, 15 times 4, 15 times 5, 15 times 5, 15, times six, 15 times seven.
01:18
And i'm looking down this list here, and i'm not really seeing anything that sticks out to me.
01:23
I'm looking for something that's in all three lists, and i just don't see anything that's working.
01:28
So i have to go a little further here.
01:30
How about nine times 11 here? let's just keep adding nine, 108, 117, 126.
01:43
Let's stop there and come down here and add 12 more here.
01:45
This is 120.
01:50
132 and if i add 15 more here i get 130 and i get i'm sorry 120 i should say 120 and 135 still not seeing anything yet so we're gonna have an issue here let's go ahead and let me drag down all of this information here to get the 9 me a little more room here and the 15 down here and let's keep going with these lists.
02:25
So let's go with the nine.
02:27
Let's keep adding nine here...