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Start with a three-digit number in which the digits are all different Use the digits to make all possible two-digit numbers and obtain their sum Investigate?
The sum is 22 times the sum of the three digits.
How would you find the greatest 3 digit numbers that is divisible by 5 and 9?
The LCM of 5 and 9 is 45 and so 45*22 = 990
How many 2-digit even numbers can form?
10, 12, 14, 16, 18, 20, 22 and just keep adding two until you get to 98.
How many two-digit number contain the digit 2?
Let's count them out... 12 20 21 22 23 24 25 26 27 28 29 32 42 52 62 72 82 92 Whew... that makes 18 two-digit numbers that have a "2".
What are numbers like 22 and 333?
22 and 333 are composite numbers.
How many 5 digits numbers are there whose digits sum to 22?
There are 5460 five digit numbers with a digit sum of 22.
How many 3-digit numbers will be there which are divisible by 25?
-22
How many three digit numbers have the sum of their digits equal to 22?
21.
Which two digit numbers have fewest factors?
20 and 30 All numbers have at least one common factor.
How many three digit positive integers are square numbers?
102 = 100 which is the first possible three digit number that is a perfect square. 312 = 961 which is the last possible three digit number that is a perfect square. So there are 22 three digit positive numbers that are perfect squares.
What are 6 different two digit numbers that have the mean of 20?
17, 18, 19, 21, 22, and 23
How many 3 digit numbers have even no of factors?
878 three digit numbers have an even number of factors. Every factor of a number has a pair, so there ought to be an even number of factors for every number. However, if a pair of the factors are the same number, then there will be an odd number of factors, that is if the number is a perfect square. Assuming three digit numbers are 100 to 999: From 100 to 999, the perfect squares are 102 = 100 to 312 = 961, a total of 31-10+1 = 22 numbers. So of the 999-100+1 = 900 three digit numbers, 22 have an odd number of factors, so 900-22 = 878 have an even number of factors.
How do you say 22 digit number?
A 22 digit number is called a quintillion.
How many 3-digit numbers can be formed from 0-9 and is divisible by 25?
22, if leading 0s are disallowed. 24 if they are permitted.
What is next in the number sequence 0 2 3 6 7 1?
9, 4, 5, 8, 22, 23, 26, 27, 21 This is assuming that the sequence is 1-digit numbers in reverse alphabetical order, then 2-digit numbers, etc.
Start with a three-digit number in which the digits are all different Use the digits to make all possible two-digit numbers and obtain their sum Investigate?
The sum is 22 times the sum of the three digits.
How would you find the greatest 3 digit numbers that is divisible by 5 and 9?
The LCM of 5 and 9 is 45 and so 45*22 = 990
