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Does reversing the order of the digits of a 2 digit prime number always result in a prime number?
No because as for example 23 is a prime number but 32 is a composite number
The sum of any two-digit number and the number formed by reversing the digits is always divisible by what?
The sum of any two-digit number and the number formed by reversing the digits is always divisible by 11. This is because when you add a two-digit number to its reverse, the result will always be a multiple of 11. This is because the difference between the original number and its reverse is always a multiple of 9, and when you add two multiples of 9, the sum will always be a multiple of 11.
If 27 is added to a twi digit number the result is a number with the same digits but in reverse order The sum of the digits is 11 What is the original number?
38
All the other digits are the result of subtracting any number from itself?
Alberto
How is 13 a happy number?
The sum of the squares of the digits of 13 is 12 + 32 = 10. The sum of the squares of the digits of this result is 12 + 02 = 1. Because this process results in a 1, this number is a happy number.
Does reversing the order of the digits of a two digit prime number always result in a prime number?
No, reversing the order of the digits of a two-digit prime number does not always result in a prime number.
Does reversing the order of the digits of a 2 digit prime number always result in a prime number?
No because as for example 23 is a prime number but 32 is a composite number
The sum of any two-digit number and the number formed by reversing the digits is always divisible by what?
The sum of any two-digit number and the number formed by reversing the digits is always divisible by 11. This is because when you add a two-digit number to its reverse, the result will always be a multiple of 11. This is because the difference between the original number and its reverse is always a multiple of 9, and when you add two multiples of 9, the sum will always be a multiple of 11.
Does reversing the order of thedigits of a 2 digit prime number always result in a prime number?
No. For example, reversing 23 gets 32.
A 2 digit number with 2 different digits has a special property When the sum of the digits added to the product of it's digits the result is the number itself What is the smallest number with?
19
How do you multiply numbers while considering significant digits?
When multiplying numbers with significant digits, count the total number of significant digits in each number being multiplied. The result should have the same number of significant digits as the number with the fewest significant digits. Round the final answer to that number of significant digits.
4.832 has 4 significant digits as a result of which rule?
As a result of the rule that you use the definition of the term - such as significant digits - when finding them for a number.
If 27 is added to a twi digit number the result is a number with the same digits but in reverse order The sum of the digits is 11 What is the original number?
38
All the other digits are the result of subtracting any number from itself?
Alberto
How to use significant digits in multiplication?
1) Look at the two numbers you are multiplying 2) Find both their number of significant digits 3) Multiply both numbers together normally 4) Round your answer to the same number of significant digits of the least number in the first two factors 250 x 185 250 had 2 sig. digits------ 185 has 3 sig. digits 250 has the least number of sig. digits (2) Final answer has to have 2 sig. digits Normal answer: 46250 With rounding of sig. digits: 46000
What happens when you add subtract or multiply the digits in the number 42?
the result is always even
How is 13 a happy number?
The sum of the squares of the digits of 13 is 12 + 32 = 10. The sum of the squares of the digits of this result is 12 + 02 = 1. Because this process results in a 1, this number is a happy number.
