perplexus.info :: Just Math : Pandigital Ponder II

Pandigital Ponder II (Posted on 2014-08-19)

Each of P, Q, R and S together uses the base ten digits from 1 to 9 exactly once.

What are the respective minimum and maximum value of P*Q*R*S?

Submitted by K Sengupta

Rating: 5.0000 (1 votes)

Solution: (Hide)

The required maximum value is 367856664, since:
367856664 = 74 * 83 * 92 * 651
The required minimum value is 2740734, since:
2740734 = 1 * 2 * 3 * 456789
For an explanation, refer to the solution submitted by Charlie in this location.

Comments: ( You must be logged in to post comments.)

Subject	Author	Date
computer solution	Charlie	2014-08-19 18:18:00
Guessing at the maximum (spoiler?)	Steve Herman	2014-08-19 17:50:24
Guessing at the minimum (spoiler?)	Steve Herman	2014-08-19 17:38:40

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