Divisible by both? 2 numbers... 45 and 90
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Of the 729 numbers that satisfy the requirement of positive integers, 104 are divisible by 7.
(7*100*101)/2 = 35,350 jpacs * * * * * What? How can there be 35,350 integers in the first 100 integers? There are 14 of them.
There are two.
Exactly 50
Twenty of them.