Chükö

Please note this is sample card. It can not be registered nor transferred, nor can we guarantee it's authenticity. If you'd like to play with official cards, please buy a pack.

21 — twenty-one

rank	21
scarcity	common
percentile	67.2%
factors	3 × 7
features	Motzkin, Jacobsthal, Fibonacci, octagonal, triangular, binary palindromic, Harshad, discrete semiprime, odious, deficient