Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.
1,2,4,8,16,32
1,3,5,9,15,45
255
These numbers go into 634 evenly: 1, 2, 317, 634.
Oh, dude, finding two numbers that add up to 658 is like finding a needle in a haystack... if the haystack was made of numbers. You just take 658 and divide it by 2 to get 329, and there you go, two numbers that add up to 658. Easy peasy lemon squeezy.
644, 658, 672.
no numbers!
Nothing can go evenly into 21 or 17. They are both odd numbers and therefore cannot be evenly divided.
There are infinte amount of answers to that question, like: 640 + 18 = 658 201 + 457 = 658 303.5 + 354.5 = 658
The numbers that go into 30 are1, 2, 3, 5, 30, 15, 10, 6
60.5
1,2,3,6,7
11,6,1,2,33
n
2,4,7
1,2,4,8,16,32