Toán Lớp 6: Phân tích 180 ra thừa số nguyên tố ?
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Toán Lớp 6: Phân tích 180 ra thừa số nguyên tố ?
Comments ( 2 )
$180$ : $2$ = $90$
$90$ : $2$ $=$ $45$
$45$ : $3$ $=$ $15$
$15$ : $3$ $=$ $5$
$5$ : $5$ $=$ $1$
$=>$ $180$ = $2^{2}$ .$3^{2}$ . $5$
Giải đáp:))
180 | 3
90 | 3
30 | 3
10 | 5
2 | 2
1