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# What is the sum of the prime factors of 570?

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Math Expert
Joined: 02 Sep 2009
Posts: 52902
What is the sum of the prime factors of 570?  [#permalink]

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20 Apr 2017, 22:43
00:00

Difficulty:

5% (low)

Question Stats:

86% (01:08) correct 14% (01:17) wrong based on 66 sessions

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What is the sum of the prime factors of 570?

A. 29
B. 30
C. 65
D. 66
E. 67

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Joined: 24 Apr 2016
Posts: 331
Re: What is the sum of the prime factors of 570?  [#permalink]

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21 Apr 2017, 00:56
570 can be written as = 2*3*5*19

Sum of the prime factors of 570 = 2+3+5+19 = 29

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Re: What is the sum of the prime factors of 570?  [#permalink]

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21 Apr 2017, 01:38
570= 57*10= 3*19*2*5

3+2+5+19= 29
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Re: What is the sum of the prime factors of 570?  [#permalink]

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25 Apr 2017, 08:02
Bunuel wrote:
What is the sum of the prime factors of 570?

A. 29
B. 30
C. 65
D. 66
E. 67

Let’s break 570 into prime factors:

570 = 57 x 10 = 19 x 3 x 5 x 2

Thus, the sum of the prime factors is 19 + 3 + 5 + 2 = 29.

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Re: What is the sum of the prime factors of 570?  [#permalink]

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28 Jan 2019, 16:41
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Re: What is the sum of the prime factors of 570?   [#permalink] 28 Jan 2019, 16:41
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