find the number of 4 digit numbers whose product of digits is divisible by 7
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Answered by
5
Answer:
There are others, such as 112.5 or 50.75, that could be called Four Digit Numbers and can be said to be divisible by 7 (112.5/7=16.5; 50.75/7=7.25).
Answered by
3
Step-by-step explanation:
The smallest 4 digit number is 1000, and the largest is 9999. The four digit number divisible by 7 are precisely the multiples of 7 in that range [ 1000,9999] , and the number of those will be
999/7 - 1000/7 + 1 = 1428 4/7 - 142 6/7
= 1428-143+1 = 1286
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