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GET /v1/gcd

GCD and LCM

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10 free calls per day — no sign-up, no API key. Goes through the oanor gateway.

Custom headers (optional)
api.oanor.com/numbertheory-api

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Code snippets

curl "https://api.oanor.com/numbertheory-api/v1/gcd" \
  -H "x-oanor-key: oanor_test_..."
await fetch("https://api.oanor.com/numbertheory-api/v1/gcd", {
  headers: { "x-oanor-key": "oanor_test_..." }
});
$ch = curl_init("https://api.oanor.com/numbertheory-api/v1/gcd");
curl_setopt($ch, CURLOPT_HTTPHEADER, ["x-oanor-key: oanor_test_..."]);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
$out = curl_exec($ch);
import requests
requests.get(
    "https://api.oanor.com/numbertheory-api/v1/gcd",
    headers={"x-oanor-key": "oanor_test_..."}
)

Example response

A real response from this endpoint, captured by the latest health check.

{
    "data": {
        "a": 48,
        "b": 180,
        "gcd": 12,
        "lcm": 720,
        "coprime": false
    },
    "meta": {
        "timestamp": "2026-06-03T01:09:40.674Z",
        "request_id": "b3915559-0784-4186-9405-833222dd5a06"
    },
    "status": "ok",
    "message": "GCD and LCM",
    "success": true
}