2乘以3乘以5乘以7乘以11乘以13乘以17除以(2004-2)等于多少 巧算、要巧算.

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2乘以3乘以5乘以7乘以11乘以13乘以17除以(2004-2)等于多少巧算、要巧算.2乘以3乘以5乘以7乘以11乘以13乘以17除以(2004-2)等于多少巧算、要巧算.2乘以3乘以5乘以7乘以11

2乘以3乘以5乘以7乘以11乘以13乘以17除以(2004-2)等于多少 巧算、要巧算.
2乘以3乘以5乘以7乘以11乘以13乘以17除以(2004-2)等于多少 巧算、要巧算.

2乘以3乘以5乘以7乘以11乘以13乘以17除以(2004-2)等于多少 巧算、要巧算.
2*3*5*7*11*13*17/(2004-2)
=2*3*5*7*11*13*17/2002
=2*3*5*7*11*13*17/13*11*2*7
=3*5*17
=255

2004-2=2002
2002=2*7*11*13 (一般学过奥数到整除会教小朋友记住1001是7*11*13
然后除掉2 7 11 13 就只剩 3 5 17
3*5*17=255

255

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