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+<!-- Do not edit this file. It is automatically generated by API Documenter. -->
+
+[Home](./index.md) &gt; [bitburner](./bitburner.md) &gt; [Hacknet](./bitburner.hacknet.md) &gt; [getCoreUpgradeCost](./bitburner.hacknet.getcoreupgradecost.md)
+
+## Hacknet.getCoreUpgradeCost() method
+
+Calculate the cost of upgrading hacknet node cores.
+
+<b>Signature:</b>
+
+```typescript
+getCoreUpgradeCost(index: number, n: number): number;
+```
+
+## Parameters
+
+|  Parameter | Type | Description |
+|  --- | --- | --- |
+|  index | number | Index/Identifier of Hacknet Node. |
+|  n | number | Number of times to upgrade cores. Must be positive. Rounded to nearest integer. |
+
+<b>Returns:</b>
+
+number
+
+Cost of upgrading the specified Hacknet Node's number of cores.
+
+## Remarks
+
+RAM cost: 0 GB
+
+Returns the cost of upgrading the number of cores of the specified Hacknet Node by n.
+
+If an invalid value for n is provided, then this function returns 0. If the specified Hacknet Node is already at max level, then Infinity is returned.
+