5 and 1
1 and 5
Five of them.
225 has five factor pairs:225,175,345,525,915,15
Five pairs. (80,1)(40,2)(20,4)(16,5)(10,8)
Yes. Factor pairs are always repeated across pairs since factor pairs are certain kinds of pairs.
(82,1)(41,2)
71 and 1
There are really only three distinct factor pairs:(16, 1) (8, 2)(4, 4)I suppose if you count (1,16) and (2,8) as being different from (16, 1) and (8,2), you could end up with as many as five factor pairs.
There are five factor pairs for 196:196 = 1 x 196196 = 2 x 98196 = 4 x 49196 = 7 x 28196 = 14 x 14
Sixteen factor pairs.
The factor pairs of 28 are :28,114,27,4
the factor pairs are 1x35 & 5x7