Current location - Training Enrollment Network - Mathematics courses - Help solve the problem! Math problem in the fifth grade of primary school: How many zeros are there at the end of the number of formula 1x2x3x4x…2008?
Help solve the problem! Math problem in the fifth grade of primary school: How many zeros are there at the end of the number of formula 1x2x3x4x…2008?
Decomposition coefficient of figures in 2008. Find the number of prime factors 5, and there will be as many zeros.

2008/5 = 40 1 ... The multiple of 3.5 is 401.

5 * 5 *1-5 * 5 * 80 * * * is 80 redundant 5s.

5 * 5 * 5 *1-5 * 5 *16 * * *16 redundant 5s.

5 * 5 * 5 * 5 *1-5 * 5 * 5 * 3 * * There are three 5s.

***40 1+80+ 16+3=500.