The name Muhammad is mentioned four times (in addition to one time as Ahmad), namely:
١. وَمَا مُحَمَّدٌ إِلَّا رَسُولٌ قَدْ خَلَتْ مِن قَبْلِهِ الرُّسُلُ أَفَإِن مَّاتَ أَوْ قُتِلَ انقَلَبْتُمْ عَلَىٰ أَعْقَابِكُمْ وَمَن يَنقَلِبْ عَلَىٰ عَقِبَيْهِ فَلَن يَضُرَّ اللَّـهَ شَيْئًا وَسَيَجْزِي اللَّـهُ الشَّاكِرِينَ ﴿آل عمران: ١٤٤﴾
1. "Muhammad is not but a messenger. [Other] messengers have passed on before him. ..." [Quran, chapter 3, verse 144]
٢. مَّا كَانَ مُحَمَّدٌ أَبَا أَحَدٍ مِّن رِّجَالِكُمْ وَلَـٰكِن رَّسُولَ اللَّـهِ وَخَاتَمَ النَّبِيِّينَ وَكَانَ اللَّـهُ بِكُلِّ شَيْءٍ عَلِيمًا ﴿الأحزاب: ٤٠﴾
2. "Muhammad is not the father of [any] one of your men, but [he is] the Messenger of Allah and last of the prophets. And ever is Allah, of all things, Knowing. (40)"
[Quran, chapter 33, verse 40]
٣. وَالَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ وَآمَنُوا بِمَا نُزِّلَ عَلَىٰ مُحَمَّدٍ وَهُوَ الْحَقُّ مِن رَّبِّهِمْ كَفَّرَ عَنْهُمْ سَيِّئَاتِهِمْ وَأَصْلَحَ بَالَهُمْ ﴿محمد: ٢﴾
3. " And those who believe and do righteous deeds and believe in what has been sent down upon Muhammad - and it is the truth from their Lord - He will remove from them their misdeeds and amend their condition. (2)"
[Quran, chapter 47, verse 2]
٤. مُّحَمَّدٌ رَّسُولُ اللَّـهِ وَالَّذِينَ مَعَهُ أَشِدَّاءُ عَلَى الْكُفَّارِ رُحَمَاءُ بَيْنَهُمْ تَرَاهُمْ رُكَّعًا سُجَّدًا يَبْتَغُونَ فَضْلًا مِّنَ اللَّـهِ وَرِضْوَانًا سِيمَاهُمْ فِي وُجُوهِهِم مِّنْ أَثَرِ السُّجُودِ ذَٰلِكَ مَثَلُهُمْ فِي التَّوْرَاةِ وَمَثَلُهُمْ فِي الْإِنجِيلِ كَزَرْعٍ أَخْرَجَ شَطْأَهُ فَآزَرَهُ فَاسْتَغْلَظَ فَاسْتَوَىٰ عَلَىٰ سُوقِهِ يُعْجِبُ الزُّرَّاعَ لِيَغِيظَ بِهِمُ الْكُفَّارَ وَعَدَ اللَّـهُ الَّذِينَ آمَنُوا وَعَمِلُوا الصَّالِحَاتِ مِنْهُم مَّغْفِرَةً وَأَجْرًا عَظِيمًا ﴿الفتح: ٢٩﴾
4. "Muhammad is the Messenger of Allah; and those with him are forceful against the disbelievers, merciful among themselves...."
[Quran, chapter 48, verse 29]
Only 3 times Zabur of Prophet Dawud(David) is mentioned in the holy Quran.
he was mentioned 4 times
none
Musa (Muses) PBUH, is the most mentioned prophet in the holy Quran. He is mentioned by name 136 times.
The prophet Mussa (Moses), peace be upon him, is mentioned in Quran 120 times.
25 times
25
The prophet is mentioned by name five times, four times by the name Muhammad & just once by the name Ahmad. Peace be upon Him.
Name of Moses (Peace be upon Him) occurs in Holy Quran 153 times. As it is so many times I am not detailing excactly where it occurs for each of the 153 mentions of Moses, but a PDF copy of translation of Holy Quran by Pickhthall can be found on the net on the following address: http://muslim-canada.org/pickthallquran.pdf You can find where Moses is mentioned youself.
12
As far as i know the Prophet Muhammad, peace be upon him, is mentioned by name 4 times (and once by the name of Ahmad) in the Original Arabic Quran.
The name "Muhammad" is mentioned in the holy Quran four times & the other name "Ahmad" is mentioned once.