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Q: How many three digit numbers are divisible by three?

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Best way to work this out: find the highest number below 10,000 that is divisible by 7 (9,996) and divide that by 7 (1,428). 1,428 is the amount of one-, two-, three- and four-digit numbers divisible by 7. Now find the number of one-, two- and three-digit numbers divisible by 7 (which is 994/7 = 142) and subtract this number from 1,428, giving us 1,286.

There are 278 5-digit numbers less than 20,000 that are divisible by both four and nine.

6 (15,30,45,60,75,90)

No prime numbers are divisible by 3. By definition a prime number isn't divisible by anything but itself and 1.

There are 17 such numbers.

Related questions

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

There are 282 such numbers.

Starting at 12 and ending at 99, there are 30 two-digit numbers divisible by three.

149 of them.

There are 600 5-digit numbers divisible by 150.

There are 151 3-digit numbers that are divisible by 6.

None. 3 digit numbers are not divisible by 19 digit numbers.

The first 3 digit number divisible by 19 is 114 (= 19 x 6) The last 3 digit number divisible by 19 is 988 (= 19 x 52) That means that there are 52 - 6 + 1 = 47 three digit numbers that are divisible by 19.

Trick question all numbers are divisible by four ,but only 175 result in whole numbered answers

There are 180 3-digit numbers divisible by five.

There are 30 such numbers.

100. The highest 3 digit number divisible by 9 is 999 (111 times). The highest 2 digit number divisible by 9 is 99 (11 times). The difference is 100.

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