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.
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There are 278 5-digit numbers less than 20,000 that are divisible by both four and nine.
There are 600 5-digit numbers divisible by 150.
Trick question all numbers are divisible by four ,but only 175 result in whole numbered answers
None. 3 digit numbers are not divisible by 19 digit numbers.
There are 282 such numbers.