If a is in N and (a,5)=1 then a^100-1 divisible by 125
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If n is divisible by 100 and 4900 < n < 5100 then n =
if c is a two - digit number , c+2 is divisible by 11 and c + 9 is divisible by 7 then c = ?
If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
cho hỏi:If m, n are consecutive odd numbers and is divisible by 3 and 5 then m = .bằng ao nhiêu vậy
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If m, n are consecutive odd numbers and is divisible by 3 and 5 then m =
If \(2a456b\) is divisible by 2,3,5 and 9 then a+b=.........
Ta có : \(\overline{2a456b}⋮2,3,5,9\) Mà : \(\overline{2a456b}⋮2,5\Rightarrow b=0\)
Mà : \(\overline{2a4560}⋮9\)
\(\Rightarrow2+a+4+5+6+0⋮9\)
\(\Rightarrow a+17⋮9\)
\(\Rightarrow\left(a+8\right)+9⋮9\)
Vì : \(9⋮9\Rightarrow a+8⋮9\)
Mà : a + 8 là chữ số .
\(\Rightarrow a+8=9\Rightarrow a=9-8\Rightarrow a=1\)
Vì : a = 1 và b = 0 => a + b = 1 + 0 = 1
Vậy a + b = 1
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If F is a 4- digit number, divisible by 9,10 and 13 then the smallest value of F is.........
Qusetion 1
If a is a natural number divisible by 7 and a<90 then the greatest possible value of a is .....................
Question 2
b0b04 +40b0b+b040b=10101*11*2 b=
Show that if A (A is a positive integer) and A have sum of digit is divisible 9, then A divisible 9.
If A is divisible by 4, then the remainder of A : 2 is
Nếu A chia hết cho 4
=> A có dạng 4k= 2 x 2 x k => chia hết cho 2 (k là số tự nhiên khác 0)
Vậy số dư khi chia A cho 2 là 0.
T**k mik nhé!
hok tốt!
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If A is divisible by 4, then the remainder of A : 2 is 0
OK
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