employs over a hundred of vs employs over one hundred of

Some examples from the web:

• The Silence, we've captured over a hundred of them now.
• I've got over a hundred of them in a Sainsbury's plastic bag.
• You killed over a hundred of my men!
• Yet, I am thrown in with over a hundred of them, and all they do is yell, walk around, televisions are blaring... So that's doing my mind harm.
• I've negotiated over a hundred of these hostage situations, okay?
• The metallurgical industry is a key factor in our economy, as it employs over a million workers.
• Say a hundred of our bills for five genuine bank notes.
• We buried about a hundred of them in a mass grave.
• Five bundles of a thousand dollars, and a hundred of half that.
• There were a hundred of them, maybe more.
• I can down a hundred of those bloodsuckers.
• His life is worth a hundred of mine.
• One chance in a hundred of survival.
• Diversity of ethnic groups - nearly a hundred of them.
• The Agency would sell a hundred of us techies for one of you.
• If I have a hundred of these, a hundred of those, it doesn't make any difference what these and those are.
• We will select about a hundred of you and some will get leading roles in the film.
• Take a hundred of mine, and they will all match.
• Rudy, there could be more than a hundred of them out there.
• But a hundred of him diminishes me in ways I can't even imagine.

Some examples from the web:

• The current legislation has been revised over one hundred times.
• And somebody has invited one hundred of my fiercest mercenaries.
• She's been missing in battles for over one hundred cycles.
• They laid siege to my planet for over one hundred solar days.
• Tonight is the combination of over one hundred years of planning.
• A week after Amadeu died he swallowed over one hundred.
• I hear you are responsible for the deaths of over one hundred people.
• They have traveled over one hundred miles every day
• The dead number over one hundred Palestinians and thirty-five Israelis.
• Tonight is the combination of over one hundred years of planning.
• The arrowhead alone weighs over one hundred pounds.
• If I get the job, I'll buy you one hundred of 'em.
• Today, one hundred of you will be leaving us.
• Worrying information has recently emerged from North Kivu, concerning hundreds of dead bodies dumped in rivers and around one hundred thousand displaced people.
• Nobody in the world could say that man is over 40, but he actually is over one hundred.
• There's over one hundred armed men in sight in these shots here.
• The rapporteur refers to over one hundred thousand patent applications having been received whereas Commissioner Bolkestein estimates that the number is not quite so high.
• In the Far East where A/H5N1 is common in Vietnam, Cambodia, Thailand and Indonesia over one hundred people have become severely ill when infected with this virus.
• Mr President, over one hundred years ago, European colonial powers divided tribal lands in Africa to establish national boundaries.
• A monk was presented with the sword over one hundred years ago.