Array integer product

array-integer-product · version 1.0.0 · Numbers & math · free, no key needed

Multiply an array of canonical integer strings and return the canonical product.

Use when you need to: array integer product · product of integer array · multiply canonical integer strings.

Supported

• array integer product
• product of integer array
• multiply canonical integer strings

Not supported

• floating point product
• factorial
• csv column product
• mean

Behavior

• Input values is an array of canonical base-10 integer strings with at most 10000 items.
• A canonical integer is 0 or an optional ASCII minus followed by a non-zero leading digit and only digits after that.
• Input -0 is accepted and canonicalized to 0; plus signs, spaces, underscores, hex, exponents, empty strings, and other leading zeros are rejected.
• Each value is parsed with BigInt. IEEE-754 numbers are rejected.
• The empty array is the empty product and returns 1.
• If any value is 0, the product is 0 after every element has been validated.
• The output product is a canonical integer string of at most 1000 digits excluding the sign; otherwise the error is "product exceeds the 1000 digit limit".

Input

• values (array of string, required): max items 10000; each max length 1001; each pattern ^-?(0|[1-9][0-9]*)$

Output

• product (string, required): max length 1001; pattern ^(0|-?[1-9][0-9]*)$

Limits

• max items: 10000
• max digits: 1000

Example

Request input:

{
  "values": [
    "12",
    "13"
  ]
}

Response:

{
  "result": {
    "product": "156"
  }
}

How to call it

MCP

Connect https://computefirst.net/mcp (setup), then call execute with:

{
  "id": "array-integer-product",
  "version": "1.0.0",
  "input": {
    "values": [
      "12",
      "13"
    ]
  }
}

HTTP (no key)

curl -X POST https://computefirst.net/v1/tools/array-integer-product/versions/1.0.0/execute \
  -H "Content-Type: application/json" \
  -d '{"values":["12","13"]}'

The machine-readable contract is at /v1/tools/array-integer-product/versions/1.0.0.

CLI

node cli.mjs run array-integer-product 1.0.0 --input input.json --base-url https://computefirst.net

Get the client at /clients/cli/.

Related tools

• Array integer cumulative sum: Replace an array of canonical integer strings with equal-length prefix sums.
• Array integer median: Select lower and upper middle canonical integers; emit median only for odd length.
• Array integer mode: Return the most frequent canonical integers, listing every mode in first-seen order.
• Array integer sum: Sum an array of canonical integer strings and return the canonical total.
• Array integer adjacent diff: Replace an array of canonical integer strings with consecutive first differences.
• Array integer GCD: Compute the non-negative greatest common divisor of an array of canonical integer strings.