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What are the number of integer palindromes between 10000 and 99999 that are divisible by 25?
Wiki User
∙ 9y ago
There are 20 integer palindromes between 10,000 and 99,999 that are divisible by 25.
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∙ 9y ago
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Find the number of integer palindromes between 10000 and 99999 that are divisible by 25?
All palindromes between 10000 and 99999 are of the form abcba where a is a digit in {1, 2, ..., 9} and b and c are digits in {0, 1, ..., 9} All multiples of 25 end in 00, 25, 50 or 75. As a cannot be 0, this means the only multiple of 25 we are interested in are those which end in 25 and 75. This means we are looking for integers of the form 52c25 and 57c75. There are 10 possible values for the digit c in each case (one of {0, 1, ..., 9}), which means: There are 20 palindromes between 10,000 and 99,999 which are divisible by 25.
Is 20.5 a prime number?
No. It's divisible by 5. A prime number is not evenly divisible by an integer. 1,2,3,5,7,11,13,17, etc.
Explain why 23 is considered to be a prime number?
A prime number is an integer, greater than 1, which is only divisible by 1 and by itself.A prime number is an integer, greater than 1, which is only divisible by 1 and by itself.A prime number is an integer, greater than 1, which is only divisible by 1 and by itself.A prime number is an integer, greater than 1, which is only divisible by 1 and by itself.
Which number is odd and divisible by 3?
Every integer of the form 3*(2n-1) where n is an integer.
Is 315 divisible by 6?
No, as only numbers that end in an even number can possibly be divisible by 6 into an integer.
Is 15345 divisible by 1?
When you divide a number by 1, it remains the same. A number is considered divisible is the resulting answer is an integer with no remainder left over. Thus, if the starting number is an integer, it will be divisible by 1. 15345 is an integer, and thus is divisible by 1.
What number is divisible by 1?
Any integer is divisible by 1.
Find the number of integer palindromes between 10000 and 99999 that are divisible by 25?
All palindromes between 10000 and 99999 are of the form abcba where a is a digit in {1, 2, ..., 9} and b and c are digits in {0, 1, ..., 9} All multiples of 25 end in 00, 25, 50 or 75. As a cannot be 0, this means the only multiple of 25 we are interested in are those which end in 25 and 75. This means we are looking for integers of the form 52c25 and 57c75. There are 10 possible values for the digit c in each case (one of {0, 1, ..., 9}), which means: There are 20 palindromes between 10,000 and 99,999 which are divisible by 25.
Can i plus see the definition for divisible?
One number is divisible by another number if that division results in an integer.
How could you test that an integer number is divisible by 2?
See if it is an even number. If it is, it's divisible by 2.
Is 20.5 a prime number?
No. It's divisible by 5. A prime number is not evenly divisible by an integer. 1,2,3,5,7,11,13,17, etc.
Is 6 divisible by 12600?
No. A positive integer cannot be divisible by a number bigger than itself!
What divisivility number is divisible by 13488?
Any number of the form 13488*k where k is an integer.
Is this biconditional statement true A number is divisible by 6 if and only if it is divisible by 3?
How can the following definition be written correctly as a biconditional statement? An odd integer is an integer that is not divisible by two. (A+ answer) An integer is odd if and only if it is not divisible by two
Explain why 23 is considered to be a prime number?
A prime number is an integer, greater than 1, which is only divisible by 1 and by itself.A prime number is an integer, greater than 1, which is only divisible by 1 and by itself.A prime number is an integer, greater than 1, which is only divisible by 1 and by itself.A prime number is an integer, greater than 1, which is only divisible by 1 and by itself.
What number is divisible by 25 between 10000 and 99999?
There are 3598 numbers between 10000 and 99999 which are divisible by 25. They are elements of the set of numbers of the form 25*k, where k is an integer between 41 and 3999 (inclusive).
Which number is odd and divisible by 3?
Every integer of the form 3*(2n-1) where n is an integer.
