
Concept explainers
To find prime factorization of given number.

Answer to Problem 62E
2, 5, 7.
Explanation of Solution
Given Information:70
Formula used: The prime factors of a number are all the prime numbers that, when multiplied together, equal the original number. You can find the prime factorisation of a number by using a factor tree and dividing the number into smaller parts.
Calculation:
To get the Prime Factors of 70, you divide 70 by the smallest prime number possible. Then you take the result from that and divide that by the smallest prime number. Repeat this process until you end up with 1.
This Prime Factorization process creates the Prime Factor Tree of 70. All the prime numbers that are used to divide in the Prime Factor Tree are the Prime Factors of 70. Here is the math to illustrate:
Again, all the prime numbers you used to divide above are the Prime Factors of 70. Thus, the Prime Factors of 70 are:
2, 5, 7.
Chapter 4 Solutions
Pre-Algebra
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