1.5 KiB
1.5 KiB
id | challengeType | title |
---|---|---|
5900f4e51000cf542c50fff6 | 5 | Problem 374: Maximum Integer Partition Product |
Description
Partitions that differ only in the order of their summands are considered the same. A partition of n into distinct parts is a partition of n in which every part occurs at most once.
The partitions of 5 into distinct parts are: 5, 4+1 and 3+2.
Let f(n) be the maximum product of the parts of any such partition of n into distinct parts and let m(n) be the number of elements of any such partition of n with that product.
So f(5)=6 and m(5)=2.
For n=10 the partition with the largest product is 10=2+3+5, which gives f(10)=30 and m(10)=3. And their product, f(10)·m(10) = 30·3 = 90
It can be verified that ∑f(n)·m(n) for 1 ≤ n ≤ 100 = 1683550844462.
Find ∑f(n)·m(n) for 1 ≤ n ≤ 1014. Give your answer modulo 982451653, the 50 millionth prime.
Instructions
Tests
tests:
- text: <code>euler374()</code> should return 334420941.
testString: assert.strictEqual(euler374(), 334420941, '<code>euler374()</code> should return 334420941.');
Challenge Seed
function euler374() {
// Good luck!
return true;
}
euler374();
Solution
// solution required