# I do not know how to make an HCF GCD calculator, can anyone help me? **URL:** \ **Category:** Questions about Thunkable X\ **Created:** [February 12, 2022, 1:39pm UTC](https://community.thunkable.com/t/i-do-not-know-how-to-make-an-hcf-gcd-calculator-can-anyone-help-me/1730497 "2022-02-12T13:39:46Z")\ **Posts on this page:** 3\ **Page:** 1
**Author:** ![vyopro010r2yd](https://avatars.discourse-cdn.com/v4/letter/v/58f4c7/32.png) [@vyopro010r2yd](https://community.thunkable.com/u/vyopro010r2yd)\ **Post date:** [February 12, 2022, 1:39pm UTC](https://community.thunkable.com/t/i-do-not-know-how-to-make-an-hcf-gcd-calculator-can-anyone-help-me/1730497/1 "2022-02-12T13:39:46Z")
I have made a calculator app for my school project but I can’t figure out how to make an HCF GCD calculator can anyone help me? ---
**Author:** ![tatiang](https://sea1.discourse-cdn.com/flex015/user_avatar/community.thunkable.com/tatiang/32/55482_2.png) [@tatiang](https://community.thunkable.com/u/tatiang)\ **Post date:** [February 12, 2022, 3:45pm UTC](https://community.thunkable.com/t/i-do-not-know-how-to-make-an-hcf-gcd-calculator-can-anyone-help-me/1730497/2 "2022-02-12T15:45:20Z")
When making a calculator function, you need to: 1. Figure out what mathematical steps to take to calculate the result. 2. Figure out how to code those steps in Thunkable. If you provide #1, I can provide you with help on #2. Just post a list for #1 and a screenshot for #2 showing how you’ve attempted it and I can help you correct anything that isn’t working. ---
**Author:** ![system](https://us1.discourse-cdn.com/flex015/uploads/thunkable/original/3X/0/f/0f59f292712368bce16ff80133ae10de8a6f27e8.png) [@system](https://community.thunkable.com/u/system)\ **Post date:** [May 13, 2022, 3:45pm UTC](https://community.thunkable.com/t/i-do-not-know-how-to-make-an-hcf-gcd-calculator-can-anyone-help-me/1730497/3 "2022-05-13T15:45:26Z")
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