# How many 4 digit numbers can be made using digits 1 5 9?

9915 1159 5555 9999 1111

### How many numbers can you make from 650271 without repeating a digit?

1,956 different numbers can be made from 6 digits. You can calculate this by using the permutation function in a summation function, like this: Σ6k=1 6Pk = 6P1+6P2+...+6P5+6P6 What this does is calculate how many 1 digit numbers you can make from 6 digits, then how many 2 digit numbers can be made from 6 digits and adds the amounts together, then calculates how many 3 digit numbers can be made and adds that on…

### 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 = 625 possible. This is the same…

### How many 4 digit numbers can be formed using the digits 1 3 5 7 9?

Using only the numbers 1,3,5,7,9, and using each number only once, we have 5 options for the first digit, then 4 remaining options for the second, 3 remaining options for the third and 2 remaining options for the fourth. This means there are 5x4x3x2 ways to combine the digits 1,3,5,7,9 into a 4 digit number. 5x4x3x2=120, so there are 120 four digit numbers that can be made.

### How many even four digit numbers can be made using 02356 where the first digit is cannot be 0 and no digits are repeated?

Assuming that 2356 is a different number to 2365, then: 1st digit can be one of four digits (2356) For each of these 4 first digits, there are 3 of those digits, plus the zero, meaning 4 possible digits for the 2nd digit For each of those first two digits, there is a choice of 3 digits for the 3rd digit For each of those first 3 digits, there is a choice of 2 digits…

### What is the number of ways of forming 6 digit number whose sum of digits is even?

I look at it this way: -- There are 90,000 numbers with five digits. (100,000 minus 10,000 with less than 5 digits) -- If the sum of the first 5 digits is odd, it can be made even by using 1, 3, 5, 7, or 9 for the 6th digit ... 5 choices. -- If the sum of the first 5 digits is even, it remains even by using 2, 4, 6, 8, or 0…

### How many 3-digit numbers can be made using the digits 4 6 7 9?

If the digits may be repeated, there are four choices for the first digit, four choices for the second, and four choices for the third. Thus there are 4x4x4 = 64 possible three-digit numbers with those digits. If the digits may not be repeated, there are still four choices for the first digit, but then only three remaining choices for the second, and then just two choices for the third. In this case there are…

### How many 2-digit or 3-digit numbers can be formed using the digits 134568 and 9 which are diisible by 4?

48. Assuming no digit can be used more than once, the two digit numbers divisible by 4 are: 16, 36, 48, 56, 64, 68, 84, 96 8 of them. For any number to be divisible by 4, only the last two digits need be divisible by 4; so for three digit numbers, each of the two digit numbers above can be preceded by any of the remaining 5 digits and still be divisible by 4…

### What is the one 9 digit delectable number which can be made using the digits 1 to 9?

A delectable number has nine digits, using the numbers 1-9 once in each digit. The first digit of a delectable number must be divisible by one. The first and second digits must be divisible by two, the first through third must be divisible by three, etc. There has only been one delectable number discovered: 381654729.

### What is the smallest number that can be made by subtracting 2 five digit numbers using the digits 0123456789?

It is difficult to interpret exactly what you are trying to ask. If you allow your five digit number to have leading zeroes and do not allow negative numbers, then 00000 - 99999 = -99999 is the smallest number. If you do allow negative 5 digit numbers, then (-99999) - 99999 = -199998 is the smallest number.

### How many numbers less than 500 can be formed using the digits 12345 and 6 without repetitions?

There is no limitation given to the number of digits in the number, thus: For 3 digit numbers: to be less than 500 the first digit can be only one of {1, 2, 3, 4} leading to 4 × 5 × 4 = 80 numbers For 2 digit numbers: they are all less than 500, and there are 6 × 5 = 30 numbers For 1 digit numbers: they are all less than 500, and…

### What is a unit digit?

A number is made up from digits in the numeral system. We often use the decimal system in which we use 10 digits, In writing the any number, many digits are used, even repitation of digits. when we write any number using the digits, the last digit ( from right side ) in that number is called unit digit. for example in the number 9814868980, here 0 is called unit digit.

### How many 3-digit numbers can be made using the digits 3 6 9?

-- If the same digit may be repeated, then 27 can be made. -- If the same digit may not be repeated, then 6 can be made. Read more: http://wiki.answers.com/Q/How_many_3-digit_numbers_can_be_made_using_the_digits_2_3_7_9#ixzz2Ch2G0vLq Read more: http://wiki.answers.com/Q/How_many_3-digit_numbers_can_be_made_using_the_digits_2_3_7_9#ixzz2Ch2G0vLq