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How many prime numbers must be multiplied to make 2400?
Three distinct prime factors, eight total.
How many 4 digit numbers can are there with distinct digits?
4,536 whole numbers or mixed numbers. 5,040 pure decimals.
How many distinct composite numbers can be formed by adding 2 of the first 5 prime numbers?
Seven of them.
How many permutation are possible of the letters in the word numbers?
The word "numbers" consists of 7 distinct letters. The number of permutations of these letters is calculated using the factorial of the number of letters, which is 7!. Therefore, the total number of permutations is 7! = 5,040.
How many numbers less than 100 are the product of 3 distinct primes?
To find how many numbers less than 100 are the product of 3 distinct primes, we can consider combinations of distinct primes. The smallest three distinct primes are 2, 3, and 5, whose product is 30. The next combination, 2, 3, and 7, gives 42, and continues with combinations like 2, 5, and 7 (70) and 3, 5, and 7 (105, which exceeds 100). Thus, the valid products less than 100 are 30, 42, and 70, leading to a total of 3 such numbers.
How many counting numbers have four distinct nonzero digits such that the sum of the four digits is 11?
To find how many counting numbers have four distinct nonzero digits that sum up to 11, we first identify all combinations of four distinct digits (from 1 to 9) that meet this criterion. The possible combinations of digits that add up to 11 are limited, and we can use combinatorial methods to list them. After identifying valid sets, we can calculate the permutations for each set (since the order of digits matters) to get the total count. Upon calculating, we find there are 24 valid combinations yielding 576 distinct numbers.
How many four digit EVEN numbers have all 4 digit distinct?
2240
How many distinct 4-digit numbers have a digit sum of 7?
-3
What is the mean of a set of numbers?
The mean is the is the total of the numbers and then dividing by how many numbers.
How many numbers less than 100 have exactly nine distinct factors?
Just 36.
What is the average of the set of numbers?
It is the total sum of the numbers divided by how many there are
How many 4 number combinations using 5 numbers?
There are only 5 distinct combinations of 4 numbers.(1234, 1235, 1245, 1345, 2345) C = 5! / 4!But there are 120 distinct combinations in distinct order (i.e. 24 ways to order each abcd).abcdabdcacbdacdbadbcadcb
