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A factorial in seconds (Posted on 2017-04-18)

For what value of n will n! be equal
to the number of seconds in 6*n weeks?

See The Solution Submitted by Ady TZIDON

Rating: 5.0000 (1 votes)

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My solution

| Comment 3 of 7 |

seconds in 6 weeks is

6*7*(24)*(60)*(60)

which factors into

6*7*(3*8)*(2*3*10)*(3*4*5)

combine two of the 3's to get a 9 and you have 10!

10!*11=11!

so n=11

Posted by Jer on 2017-04-18 15:15:18

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