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The Number System Videos 5 videos

ACT Aspire Math: Finding the Prime Factorization of 120
4 Views

Which of the following is the prime factorization of 120?

ACT Aspire Math: Ordering Numbers from Least to Greatest
7 Views

Which of the following lists of numbers is ordered from least on the left to greatest on the right?

ACT Aspire Math: Knowing (and Using) the Rules of Divisibility
12 Views

Place one of the following numbers into the ones digit of the number 428, while moving the other digits so that the 4 is in the position of the tho...

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ACT Aspire Math: Finding the Prime Factorization of 120 4 Views


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Description:

Which of the following is the prime factorization of 120?


Transcript

00:03

Okay A ct asked firing math people Another drill for

00:06

you Here we go Which of the following is the

00:08

prime factory ization of one hundred twenty Strap that hundred

00:16

twenty on the table We're ready to dissect this imager

00:19

to find out what it's made of Finds the prime

00:22

factory ization of a number by dividing as many twos

00:26

as we can at least a start And then as

00:28

many threes as we can and then as many fives

00:31

as we can and so on until we're left with

00:33

only prime numbers So this table shows that we can

00:36

divide by two three times divide by three onesie into

00:42

the fifteen there divide by five once and uh that's

00:47

it So the prime factors one hundred twenty equals two

00:50

to the third Three too The first times Five to

00:52

the first That's it We're done Excuse us These mathematical

00:56

operations can be messy business So that's it The answer

00:59

is a no

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