1 x 100 = 100
2 x 100 = 200
3 x 100 = 300
4 x 100 = 400
5 x 100 = 500
100, 200, 300, 400, 500
The multiples of 5 that are also multiples of 6 are multiples of their LCM. The LCM of 5 and 6 is 30, so the question becomes which multiples of 30 are less than 100? The solution is the numbers: 30, 60, 90
20
40 and all its multiples...
-15
81,84,87,90,93,96, and 99
The multiples of 5 that are also multiples of 6 are multiples of their LCM. The LCM of 5 and 6 is 30, so the question becomes which multiples of 30 are less than 100? The solution is the numbers: 30, 60, 90
Since 10 is a multiple of 5, all multiples of 10 will also be multiples of 5. Test the theory. 30, 50, 100... All multiples of 10, and also of 5.
20
There are an infinite number of multiples of 100. 100, 200, 300,400, ....
20,40,60,80,and 100
6 of them.
5,10,15,20,25,30,35,40,45,50,55,60
5, 10, 15 and just keep adding 5 until you get to 100.
100, 200, 300, 400, 500.
If 100-300 is inclusive, the answer is 41.
100, 200, 300, 400, 500
The highest power of 25 that divides the product of the first 100 multiples of 5 is 50. This is because for each multiple of 25, we have an extra factor of 25. Since there are 4 multiples of 25 in the first 100 multiples of 5, we have a total of 50 factors of 25.