: , b1 ¹ 0, , q ¹ 0, :
bn+1 = bn q, q .
: n = m×k + r,
n , m - , k - , r : 0 £ r < m
:
n = 2k + r, r = {0; 1}
n = 4k + r, r = {0; 1; 2; 3}
n: m = k, n, m, k .
m n, n m.
n ,
n.
: {2; 3; 5; 7; 11; 13;...; 41; 43; 47 ..}
n m , , .
: 317,3 = 3,173× 102 ; 0,00003173 = 3,173× 10-5
: 3173 = 3× 1000 + 1× 100 + 7× 10 + 3
,