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If the number can contain repeated digits, the answer is 800000. Without repetition, there are 483840.

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Q: How many seven digit numbers are there when 0 and 4 cannot be the leading number?
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Related questions

How many four-digit numbers can be formed if the leading digit cannot be zero?

There are 9 x 10 x 10 x 10, or 9000 four-digit number that can be formed if the leading digit cannot be zero.


How 99999999 numbers are 8 digit number there in?

There are not 99999999 eight digit numbers - unless you allow numbers with leading 0s.


How many 4 digit numbers are there if odd digits can be repeated?

There are 7056 4-digit numbers with at most one of {0,2,4,6,8}, and any number of {1,3,5,7,9}. Leading 0s are not permitted.There are 7056 4-digit numbers with at most one of {0,2,4,6,8}, and any number of {1,3,5,7,9}. Leading 0s are not permitted.There are 7056 4-digit numbers with at most one of {0,2,4,6,8}, and any number of {1,3,5,7,9}. Leading 0s are not permitted.There are 7056 4-digit numbers with at most one of {0,2,4,6,8}, and any number of {1,3,5,7,9}. Leading 0s are not permitted.


The leading digit in a decimal number?

The leading digit in a number is the digit to the most left. EXAMPLES: 1.09 the leading digit is 1. 298 leading digit 2.


Which is the smalllest 3 digit number?

Assuming you mean whole numbers and leading zeros do not count, the smallest 3 digit number is 100.


How many Three Digit Numbers are Divisible by BIN-10001?

A three digit number cannot be divisible by a 5 digit number - in any base.


What is the leading digit?

A leading digit is the digit/number at the beggining of a decimal number or regular number and is the first number to the left.


How many 4 digit numbers are there?

In base ten, there are 9000 four digit number, the numbers are from 1000 to 9999. If you allow leading zeros, then there are 10000 numbers. [0000 - 9999]


How many 7 digit numbers are there if 0 and 4 cannot be the leading number?

There is a choice of 8 digits for the first digit and a choice of 10 digits for each of the remaining 6, so there are 8 x 106 = 8,000,000 (eight million) 7-digit numbers which do not start with 0 or 4.


How many four digits numbers can be formed using 0123456789?

Assuming that the first digit of the 4 digit number cannot be 0, then there are 9 possible digits for the first of the four. Also assuming that each digit does not need to be unique, then the next three digits of the four can have 10 possible for each. That results in 9x10x10x10 = 9000 possible 4 digit numbers. If, however, you can not use the same number twice in completing the 4 digit number, and the first digit cannot be 0, then the result is 9x9x8x7 = 4536 possible 4 digit numbers. If the 4 digit number can start with 0, then there are 10,000 possible 4 digit numbers. If the 4 digit number can start with 0, and you cannot use any number twice, then the result is 10x9x8x7 = 5040 possilbe 4 digit numbers.


When you are the left digit of a digit number what are you?

the leading digit


What is the least possible eight digit number without repeating any digit?

Assuming whole numbers and a leading zero does not count: 10,234,567