笔脿迟谤补颈苍
Tha seata 脿ireamhan a tha co-cheangailte ann an d貌igh air choreigin ann an 貌rdugh 脿ireamhan. San earrainn seo, ionnsaichidh sinn mar a dh'aithnicheas sinn diofar she貌rsachan 貌rdughan, agus mar a leudaicheas sinn p脿tran 脿ireamhan no dhiagraman agus mar a lorgas sinn am foirmle aige.
'S e liost 脿ireamhan a th' ann an 貌rdugh. Canar teirmean an 貌rduigh ris na h-脿ireamhan.
'S iongantach mura bheil thu e貌lach air iomadh 貌rdugh ainmeil de 脿ireamhan.
脌ireamhan cothromach
\(2,\,4,\,6,\,8,\,10,\,12...\)
脌ireamhan c貌rr
\(1,\,3,\,5,\,7,\,9,\,11...\)
脌ireamhan ce脿rnagach
\(1,\,4,\,9,\,16,\,25,\,36,\,49,\,64...\)
(\(1\times 1,\ 2\times2,\ 3\times3\)...)
脌ireamhan ci霉bach
\(1,\,8,\,27,\,64,\,125...\)
(\(1 \times 1 \times 1\), \(2 \times 2 \times 2\), \(3 \times 3 \times 3\)...)
Cumhachdan de 2
\(2,\,4,\,8,\,16,\,32,\,64...\)
Cumhachdan de 10
\(10,\,100,\,1000,\,10000,\,100000,\,1000000...\)
脌ireamhan triantain
\(1,\,3,\,6,\,10,\,15,\,21,\,28...\)