Permutations (nPr): 18 n n; 5 r r
Specific conversion page with reference context, calculator, and nearby values.
Table of Contents
18 n n; 5 r r converts to
1,028,160 Permutation Count
Use this as a quick reference for Permutations (nPr).
Value Details
Input: 18 n n; 5 r r
Output: 1,028,160 Permutation Count
Permutations (nPr)
Calculate the number of ordered permutations using nPr for integers with 0 ≤ r ≤ n ≤ 18.
Calculated Result
—
Nearby Reference Values
| Scenario | nPr |
|---|---|
| 15 n n; 4 r r | 32,760 Permutation Count |
| 15 n n; 5 r r | 360,360 Permutation Count |
| 15 n n; 6 r r | 3,603,600 Permutation Count |
| 15 n n; 14 r r | 1,307,674,368,000 Permutation Count |
| 15 n n; 15 r r | 1,307,674,368,000 Permutation Count |
| 18 n n; 0 r r | 1 Permutation Count |
| 18 n n; 1 r r | 18 Permutation Count |
| 18 n n; 2 r r | 306 Permutation Count |
| 18 n n; 3 r r | 4,896 Permutation Count |
| 18 n n; 4 r r | 73,440 Permutation Count |
| 18 n n; 5 r r | 1,028,160 Permutation Count |
| 18 n n; 6 r r | 13,366,080 Permutation Count |
| 18 n n; 17 r r | 6,402,373,705,728,000 Permutation Count |
| 18 n n; 18 r r | 6,402,373,705,728,000 Permutation Count |
Frequently Asked Questions
Common questions about Permutations (nPr), formulas, and expected usage.
What does the Permutations (nPr) calculator do?
It helps with counting ordered arrangements in combinatorics, scheduling, and coding interviews.
What formula does the Permutations (nPr) calculator use?
nPr = n! / (n-r)! for ordered selections.
What inputs are valid?
n and r must be integers with 0 ≤ r ≤ n ≤ 18.
When would I use this?
counting ordered arrangements in combinatorics, scheduling, and coding interviews
Methodology and Review
This page is generated from the same conversion definition used by the main calculator page, which keeps the calculator, reference table rows, and FAQ schema aligned.
Reviewer and update metadata are shown above and included in structured data. See our editorial policy, review process, and corrections policy.
Use this page as a fast lookup reference, then confirm final project values using applicable standards and manufacturer documentation.