The Anti-Christ is Mentioned four times in scripture:

1 John 2:18 
18 Little children, it is the last time: and as ye have heard that antichrist shall come, even now are there many antichrists; whereby we know that it is the last time.

1 John 2:22 
22 Who is a liar but he that denieth that Jesus is the Christ? He is antichrist, that denieth the Father and the Son.

1 John 4:2-3 
2 Hereby know ye the Spirit of God: Every spirit that confesseth that Jesus Christ is come in the flesh is of God:
3 And every spirit that confesseth not that Jesus Christ is come in the flesh is not of God: and this is that spirit of antichrist, whereof ye have heard that it should come; and even now already is it in the world.

2 John 7 
7 For many deceivers are entered into the world, who confess not that Jesus Christ is come in the flesh. This is a deceiver and an antichrist.
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The MARK of the beast is mentioned eight times in the book of Revelation:

Revelation 13:16-18
And he causeth all, both small and great, rich and poor, free and bond, to receive a MARK in their right hand, or in their foreheads:
And that no man might buy or sell, save he that had the MARK, or the name of the beast, or the number of his name.
Here is wisdom. Let him that hath understanding count the number of the beast: for it is the number of a man; and his number is Six hundred threescore and six. Rev. 13:16-18

Revelation 14:9
And the third angel followed them, saying with a loud voice, If any man worship the beast and his image, and receive his MARK in his forehead, or in his hand, Rev.

Revelation 14:11
And the smoke of their torment ascendeth up for ever and ever: and they have no rest day nor night, who worship the beast and his image, and whosoever receiveth the MARK of his name. 

Revelation 15:2
And I saw as it were a sea of glass mingled with fire: and them that had gotten the victory over the beast, and over his image, and over his MARK, and over the number of his name, stand on the sea of glass, having the harps of God. 

Revelation 16:2
And the first went, and poured out his vial upon the earth; and there fell a noisome and grievous sore upon the men which had the MARK of the beast, and upon them which worshipped his image. Rev. 16:2

Revelation 19:20
And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the MARK of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone. 

Revelation 20:4
And I saw thrones, and they sat upon them, and judgment was given unto them: and I saw the souls of them that were beheaded for the witness of Jesus, and for the word of God, and which had not worshipped the beast, neither his image, neither had received his MARK upon their foreheads, or in their hands; and they lived and reigned with Christ a thousand years. 
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Many have speculated the identity of the Mark of the Beast. Many scholars and Bible teachers have attempted to identify the mark, but have failed to identify the mark Biblically. They’ve claimed everything from the Rosary, to microchip implants, to reading the Bible. The Mark will be the Ultimate Act of Swearing Loyalty to the Beast, therefore you will NOT have any problem identifying the Mark of the Beast.

If someone receives the mark, they shall drink of the wine of the wrath of God, and be tormented with fire and brimstone for ever and ever.

Rev 19:20

20 And the beast was taken, and with him the false prophet that wrought miracles before him, with which he deceived them that had received the MARK of the beast, and them that worshipped his image. These both were cast alive into a lake of fire burning with brimstone. 

All Scripture is from the King James Version Bible