What is 15! (15 factorial)?
1,307,674,368,000 — 15 factorial (15!) equals 1,307,674,368,000. A factorial is the product of all positive integers from 1 up to the given number. Factorials are used in probability, combinations, permutations, and many areas of mathematics.
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Below is the step-by-step calculation used to determine the result.
Answer
1,307,674,368,000
15! = 15 × 14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 1,307,674,368,000
Calculate
15 × 14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 1,307,674,368,000
Step-by-Step Solution
15! means multiply all integers from 15 down to 1
Calculate: 15 × 14 × 13 × 12 × 11 × 10 × 9 × 8 × 7 × 6 × 5 × 4 × 3 × 2 × 1 = 1,307,674,368,000
Therefore, 15! = 1,307,674,368,000
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