how many integers n are there such that 5/61大于1/n大于13/57?

how many integers n are there such that 5/61大于1/n大于13/57? SAT数学：how many integers between 1 and 1000 are the product of two consecuyive integers? how many ordered pairs of positive integers（m,n）satisfy the equation m/6=6/ma:7 b:8 c:9 d:10 英语翻译How many 3-digit positive integers are odd and do not contain the digit 5? how many positive integers less than 1000 are not divisible by 3 How many positive integers greater then 5 and less than 500 are factors of 2004? How many four-digit positive integers are there with thousands digit m,n是正整数,在1,2...,2013中存在几个数可以表示成(nm-1)/(m-n)的形式?if m and n are positive integers,how many integers among 1,2,3,.,2013 can be represented by (mn-1)/(m-n)? if n is the product of the integers from 1 to 8 ,inclusive ,how many different prime factors greater than 1 dose n have?a/ 4b/ 5c/ 6d/ 7e/ 8 All the positive integers less than 49 are multiplied together.How many zeros will this product end in? how many even three-digit integers haver the property that their digits ,read left to right ,are strictly increasing order? How many positive integers less than 1000 are multiples of 5 and are equal to 3 times an even integer? Of the two-digit positive integers less than 20 how many have different digits翻译翻译〜〜 how many positive even integers less than 1000 can be made using the digits5,6,7 and8 英语翻译how many five - digit positive integers,divisible by 9,can be written using only the digis 3 and How many digits are needed to write all of the integers from 1 to 1000 inclusive?（请写明过程） In writing all of the integers from 1 to 300,how many times is the digit 1 used? Gmat数学题：How many integers between 1 and 100,inclusive,can be divided by none of 2,3,and