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1339=13.103
Số ước của 1339 là :
(1+1).(1+1)=4(ước)
Vậy 1339 có 4 ước
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231 - (x - 6) = 1339 :13
231 - ( x-6 ) = 103
x - 6 = 231 - 103
x - 6 = 128
x = 128 + 6
x = 134
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1339 = 131 .1031
Số ước của 1339 là (1 + 1) . (1 + 1) = 4 (ước)
126 = 21 . 32 . 71
Số ước của 126 là (1 + 1) . (2 + 1) . (1 + 1) = 12 (ước)
số ước 1339 là 4 ước . Chắc chắn 100%