# LCM GCD Prime Factor Math vs Find Prime Num

The clearest difference is price: Find Prime Num at Free against LCM GCD Prime Factor Math's $0.99. Find Prime Num also leads on update cadence (every 4 days vs every 18 months). On ads, in-app purchases, device support and iOS requirement there is nothing between them.

Find Prime Num is free to download; LCM GCD Prime Factor Math costs $0.99 up front. Neither carries in-app purchases, so what you see is what you pay.

LCM GCD Prime Factor Math ships an update every 18 months, Find Prime Num every 4 days. The most recent releases landed on October 6, 2026 and October 14, 2026 respectively.

## The numbers

| Metric | LCM GCD Prime Factor Math | Find Prime Num |
| --- | --- | --- |
| Price | $0.99 | **Free** |
| Rating | — | **[5.0 (1 ratings)](https://appshunter.io/ios/app/find-prime-num/id1505409395/reviews)** |
| Number of ratings | — | **1** |
| Positive reviews | — | 50.0% of reviews |
| In-app purchases | No | No |
| Ads | No | No |
| Update frequency | Every 18 months | **Every 4 days** |
| Monetization | — | Free |
| Size | 5 MB | 8 MB |
| Requires iOS | **11.0** | 12.0 |
| Devices | iPhone, iPad, iPod | iPhone, iPad, iPod |
| Age rating | 4+ | 4+ |
| Developer | [Maria Dolores Garcia Ferre](https://appshunter.io/developer/970100146) | [Duo Pisceses, Inc.](https://appshunter.io/developer/850707063) |

## What reviewers say

### LCM GCD Prime Factor Math

[App page](https://appshunter.io/ios/app/lcm-gcd-prime-factor-math/id1488738897)

**Features:** macOS Compatibility

**In-app purchases:** none


### Find Prime Num

[App page](https://appshunter.io/ios/app/find-prime-num/id1505409395)

Quickly determine if a number is prime and find one of its factors. This app also measures calculation time to help you benchmark your device's processing speed. Share your results and compare performance with others.

**Highlights:** Calculate prime numbers up to 64-bit integers, Measure processing time for device speed comparison, Find one factor of a non-prime number, Share calculation results, User-friendly interface

**Features:** macOS Compatibility

**In-app purchases:** none


## Frequently asked questions

### Is LCM GCD Prime Factor Math free?

LCM GCD Prime Factor Math costs $0.99, with no in-app purchases.

### Is Find Prime Num free?

Find Prime Num is free to download, with no in-app purchases.

### Do LCM GCD Prime Factor Math or Find Prime Num have ads?

Neither LCM GCD Prime Factor Math nor Find Prime Num shows ads.

### Which is updated more often, LCM GCD Prime Factor Math or Find Prime Num?

LCM GCD Prime Factor Math ships an update every 18 months, and Find Prime Num every 4 days. Most recently, LCM GCD Prime Factor Math was updated on October 6, 2026 and Find Prime Num on October 14, 2026.

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*Compared by [AppsHunter](https://appshunter.io/) from daily US App Store data. Review summaries are generated from verbatim App Store reviews.*