WEBVTT

1
00:00:00.000 --> 00:00:04.598
Here is the problem: Find the least common multiple of 9, 28.

2
00:00:05.048 --> 00:00:07.521
Find the least common multiple of the numbers.

3
00:00:08.321 --> 00:00:10.283
Prime factorization of each number.

4
00:00:10.733 --> 00:00:14.170
Use the GCF to combine 9 and 28.

5
00:00:14.620 --> 00:00:20.530
Confirm with prime factors. Take every prime that appears, each with its largest exponent.

6
00:00:21.330 --> 00:00:23.838
So the answer is 252.

7
00:00:24.288 --> 00:00:30.116
252 is the smallest positive number that every input divides exactly.

8
00:00:30.916 --> 00:00:34.840
252 divided by 9 equals 28.

9
00:00:35.290 --> 00:00:39.028
252 divided by 28 equals 9.