a) 48 = 2³· 3 b) 231= 3 ·7· 11
144= 2⁴· 3³ 693= 3²· 7· 11
[ ......]= 2⁴· 3² [ .......]= 3²·7· 11
( ......)= 2³· 3 ( ........)= 3· 7· 11
c) 1 890= 2 · 3³ ·5·7 d) 327= 3 ·109
2 268= 2²·3⁴· 7 360= 2³ 3²·5
[ ..........]= 2²· 3⁴· 5·7 900= 2²·3²· 5²
( ..........) = 2·3²·7 [ .........]=2³· 3²· 5²·109
( .........)= 3·109
OBSERVAŢIE! [ .....] = c.m.m.m.c.
( .....) = c.m.m.d.c.