[問題]GWD4 Q4

[amyshen]

Q4:
If x is the product of the positive integers from 1 to 8, inclusive, and if i, k, m, and p are positive integers such that x = 2i3k5m7p, then i + k + m + p =

A. 4
B. 7
C. 8
D. 11
E. 12

這提好像沒人問哩...但是我解不出來

[Jessy]

題目應該是這樣
If x is the product of the positive integers from 1 to 8, inclusive, and if i, k, m, and p are positive integers such that x = 2[sup]i[/sup]3[sup]k[/sup]5[sup]m[/sup]7[sup]p[/sup], then i + k + m + p =

A. 4
B. 7
C. 8
D. 11
E. 12

x=1*2*3*4*5*6*7*8=1*2*3*2[sup]2[/sup]*5*(2*3)*7*2[sup]3[/sup]=2[sup]7[/sup]*3[sup]2[/sup]*5*7
i + k + m + p =7+2+1+1=11

[Jessy]

請多多愛用編輯的 Sup 功能
才能表達正確題目喲~~