The natural numbers 1, 2, 3, 4, 5... are arranged in order, and the multiples of 2 and 3 are crossed out, but the multiples of 7 are all reserved. What is the remaining 2007th number?
自然数1，2，3，4，5…按顺序排列，划去2的倍数和3的倍数，但是其中7的倍数一律保留，剩下的第2007个数是多少．
<gadget id="calculator">4_662 + 21</gadget>
<output>4_683</output>

<result>4_683</result>