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10.) A two-digit number is prime. When you reverse the digits, that number is also prime. What could the number be List three possibilities.?
Linna Evan
Some numbers that you can get when you reverse the digits and they are still prime numbers are:
403 ÷ 13 = 31
2,701 ÷ 37 = 73
1,207 ÷ 17 = 71
Mariam Mouhajer
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You are a number less than 100 two of your factors are 3 and 5 your digits are 1 apart what number are you?
You are 45. Remember, if a number is divisible by 5, then it must either end in 0 or 5. Therefore, since your digits are one apart, your only possibilities are 10, 45, and 65. Now, if a number is divisible by 3, the digits of that number add up to a number that is divisible by three. Of your three possibilities, this only works with 45 since 4 + 5 = 9 and 9 is divisible by 3. Hence, you are 45.
What does 2.133333333 round up to?
Since all of its digits are under 5, that number doesn't round up. You can round it wherever you want. 2, 2.1 and 2.13 are some possibilities.
How many integers with distinct digits are there between 1000 and 9999 such that the absolute value of the difference between the first and the last digit is 2?
-- The first and last digits can be 1-3, 2-4, ... 6-8, 7-9. Seven (7) possibilities. -- Or, they can be 9-7, 8-6 ... 3-1, 2-0. Eight (8) possibilities. -- Fifteen (15) possible sets of first and last digits. -- For each of those, the middle two digits can be anything from 00 to 99 ... 100 possibilities. -- Total number of 4-digit numbers that meet these specs = 15 x 100 = 1,500 .
Which is greater the greatest whole number with five digits or the least whole number with 6 digits?
Integers of 6 digits are normally greater than integers of 5 digits
A prime number with two identical digits?
The number 11 is prime and has two identical digits.
Dan found a twodigit odd number. one of its digits was half the other. the number was greater than 50. what was it?
63
I am a three digit number. The sum of my digits is 18. When I reverse my digits and subtract the new number from the original number you get 99. What number I am?
whats the answer please??
When you reverse the digits in a certain two-digit number you increase its value by 9 Find the number if the sum of its digits is 7?
34.
How can you generate a palindrome from a given number?
You write the number and then follow it with the digits in reverse order.
How many three digit numbers have three distinct digits?
For a 3 digit number, the left most or the most significant digit cannot be zero. So it can be 1,2,3,4,5,6,7,8 or 9 which is 9 possibilities. The middle number can be 0,1,2,3,4,5,6,7,8,9 which is 10 possibilties but one of the digits has been chosen already as the first digit, so the possibilities are only 9. The right most number can be 0,1,2,3,4,5,6,7,8,9 which is 10 possibilities but two of the digits have been already used by the left most and the middle digits. That leaves only 8 possibilities. So the total number of three digit numbers that have three distinct digits is 9 x 9 x 8 = 81 x 8 = 648 possibilities
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
What does reverse the digits mean?
you just carry the first number and add 5 to the second number
How many 4 digit numbers have only odd numbers?
625. Here's how:There are five odd digits {1,3,5,7,9} so our numbers will be made using only these digits. This is the same number of possibilities as if you had a base 5 number system where the allowed digits are {0,1,2,3,4}. For a 1 digit base-5, there are 5 possibilities, for a two digit base-5 there are 5² = 25 possibilities, so for a 4-digit, there are 5^4 = 625possible. This is the same number you will have with only using odd digits.
How many positive integers less than 100 can be written using digitals 1 3 5 7 9 if digits can be repeated?
1-digit number: 5 possibilities 2-digits number: 5 x 5 = 25 possibilities So there are 30 numbers.
Using 4 digits what is the total number of combinations for a 4 digit lock code?
If the digits can repeat, then there are 256 possible combinations. If they can't repeat, then there are 24 possibilities.
A number consisting of three different digits is subtracted from a number made up of the same digits in reverse order?
Your answer is, depending on the order of your subtraction, either positive or negative 198
What 5 digit number when multiplied by 4 yields the number the same five digits in reverse order?
The number is 21978. 21978 when multiplied by 4 which gives the result 87912 which is in reverse order.
