perplexus.info :: Numbers : function of s.o.d. of prime

function of s.o.d. of prime (Posted on 2021-12-31)

Solve g(sod(p)) = p where:

p is a prime number.
g(x) = Ax^2 + Bx + C
A, B, and C are single digit positive integers.
sod() is the sum of digits function
and, the combined digits of A, B, C, p and sod(p) include each of the digits 1 through 9 exactly once.

Find A, B, C, p and sod(p)

Submitted by Larry

Rating: 4.0000 (1 votes)

Solution: (Hide)

9x^2 + 8x + 5 = 2437 and sod(2437) = 16
where x = sod(2437)

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

Subject	Author	Date
computer solution	Charlie	2021-12-31 10:29:10
soln	Steven Lord	2021-12-31 09:07:30

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