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900 numbers
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∙ 10y ago
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How many 5 digit numbers that end with 0 are there?
Assuming positive integers, and no leading zeros, the range of five digit numbers is 10000 to 99999. The ones that end in zero can be found by taking the four digit numbers: 1000 to 9999 and multiplying each by ten. {1000,1001, 1002, ...9999}, multiplied by ten is {10000,10010,10020,....99990}. There are 9000 of them.
How many 2-digit numbers end in 0?
There are 9 of them.
How many 10 digit hexadecimal numbers begin and end with F?
There are 168 = 4,294,967,296 such numbers.
How many two digit prime numbers end in the digit 3?
13, 23, 43, 53, 73 & 83
What must a four digit number end in to be divisible by 400?
All of the four-digit multiples of 400 end in 00.
How many strings of six decimal digits end with an even digit?
There are 500000 such numbers.
How many 5 digit odd numbers are possible without ending in 0?
All of them. There are roughly 45,000 5-digit odd numbers. None of them end in 0.
How many strings of four decimal digits end with an even digit?
There are 5000 such strings.
How many four digit number are divisble by 5?
All those that end with 0 or 5 are divisible by 5. That would be 1000, 1005, 1010, ... 9990, 9995. There are 900 such numbers.
How many whole numbers between 100 and 400 begins or end with digit 2?
30 of them.
Do all composite numbers end in 2?
No, there are composite numbers that end in every other digit.
How many four digit multiples of 5 are there?
That would be all the numbers that end with 0 or 5. So:* For the first digit, you have 9 options (digits 0-9). * For the second digit, you have 10 options. * For the third digit, you have 10 options. * For the fourth digit, you have 2 options (the digits 0 or 5). You can multiply all those together.
