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Mathematics
Quick fact
For two coprime denominations a and b, the largest nonrepresentable amount is ab – a – b. For the classic chicken nuggets problem with 6, 9, and 20, the largest non-orderable number is 43.
Why this is interesting
You have two coins, say 3 and 5 cents. What is the largest amount you cannot make? Surprisingly, there is a simple formula—and for some sets of coins, the answer can be surprisingly large.
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Subjects · study & training · careers
Choose something you are considering. FACTREE will give you a clear picture of what it contains, how its main parts connect and where it could lead.
This private catalogue connects 31 subjects, study routes and careers across six broad areas. Public Maps and learner routes remain off.
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Open a subject to see its complete shape at a glance. You can always return here and choose something else.
See what programming involves, how its main areas connect, and whether you find the knowledge interesting enough to take it further.
Structuring the Programming Map…
Complete subject map
Move from the one-screen overview into all 19 areas. Open any area, compare possible Paths and return to the overview whenever you want.
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Curiosity quiz
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