How do you list all the factors of 40 from least to greatest?

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Answer 1 · 2016-09-24T07:28:50

Tthe factors of 40 from least to greatest is #{1,2,4,5,8,10,20,40}#.

When we list factors, say of #n#, from least to greatest,

it may be remembered that if #a# is a factor, other factor is #n/a#.

For #40#, first factor (least) is #1# and greatest is #40/1=40#.

next factor is #2# and other (before the greatest) is #40/2=20#.

next factor is #4# and other (before the above two) is #40/4=10#

Then comes #5# and #40/5=8# and there is none between #5# and #8#, so we stop.

Hence, factors of #40# in increasing order from least to greatest are

#{1,2,4,5,8,10,20,40}#.

Answer 2 · 2016-10-03T19:15:42

Bit of a cheat but you can compare this to other solutions given:

Tony B