1, 3, 5, 15
1, 3, 5, 11, 15, 33, 55, 165
15÷4=3.75
3 will go into both of these numbers
1, 3, 5 & 15 all divide 15 and 120 exactly.
8.5333
1, 3, 5, 11, 15, 33, 55, 165
The number 60 can't be divided by 25 and get a whole number.
1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60.
15÷4=3.75
Because 1, 3, 5 and 15 are the only positive whole numbers that will divide evenly into 15 with no remainder.
15,30,45,60,75,90,105,120,135,150,165,180,,195,210,225,240,,255,270,285,300,.................................. and so on This is the sequence of numbers whose common difference is 15 and other numbers can be found by adding 15 to the previous number.
1, 3, 5 & 15 all divide 15 and 120 exactly.
3 will go into both of these numbers
These numbers divide into 15 evenly: 1 3 5 and 15.
8.5333
Mixed numbers can't be whole numbers.
(1+15)*15/2first plus last times number of numbers then divide by two