>
数学
>
已知n为大于100的自然数,若n
3
+100能被n+10整除,则满足条件的n的个数为______.
人气:424 ℃ 时间:2019-08-16 20:24:08
解答
(n
3
+100)÷(n+10)=
n
3
+100
n+10
=
n
2
−10n+100−
900
n+10
.
由题设,知n+10整除900.
整除900的数有900,450,300,225,180,150,100,90,75,60,…,1
即n+10=900,450,300,225,150,100,90,75,60,…,1.
∴n=890,440,290,215,140,90,…,-9.
又∵n>100(已知)
∴满足条件的n应是890,440,290,215,140,5个.
故答案为:5
推荐
已知n为大于100的自然数,若n3+100能被n+10整除,则满足条件的n的个数为_.
已知n为大于100的自然数,若n3+100能被n+10整除,则满足条件的n的个数为_.
设3m+n能被10整除,试证明3m+4+n也能被10整除.
试求不大于100,且使3的n次方+7的n次方+4能被11整除的所有自然数n的和.
求最大自然数N,使得N的2次方+20能被N+10整除
Go ()along the road.The bus stop is at the end of it.
什么是二倍角、什么是log
设定义在[-2.2]上的偶函数f(x)在区间[0.2]上单调递减,若f(1-m)
猜你喜欢
不等式x^2+mx+m/2>0对任意实数x恒成立,则实数a的取值范围是?
THe invention of internet helped bring into popular usage___a wide range of new words
大小两圆的直径比是3:2,小圆周长比大圆周长的1/2还多4.71厘米,求大圆半径和小圆面积
Will it b______ you if I turn on the radio该怎么写呢
(5m十1)的平方减(5m十1)乘(5m-1)
一道高一三角函数恒等变换题
lend me it 还是lend it to me
lt is six thirty in the morning.Ron m_____ get up.He puts up his clothes,but can't f_____ his shoes.He put them under th
© 2025 79432.Com All Rights Reserved.
电脑版
|
手机版