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What is the remainder when the number 14^2 * 15^8 is divided by 5?

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What is the remainder when the number 14^2 * 15^8 is divided by 5?  [#permalink]

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New post Updated on: 23 Aug 2016, 14:43
1
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00:00
A
B
C
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E

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  5% (low)

Question Stats:

83% (00:26) correct 17% (00:43) wrong based on 125 sessions

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What is the remainder when the number 14^2 * 15^8 is divided by 5?

A) 0
B) 1
C) 2
D) 4
E) 5

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Originally posted by duahsolo on 23 Aug 2016, 13:26.
Last edited by duahsolo on 23 Aug 2016, 14:43, edited 1 time in total.
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Re: What is the remainder when the number 14^2 * 15^8 is divided by 5?  [#permalink]

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New post 23 Aug 2016, 14:07
1
14^2 has units digit 6
15^8 has units digit 5

Thus 14^2*15^8 has units digit 0 and will be divisible by 5. The remainder will be zero

Answer: (A)


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Re: What is the remainder when the number 14^2 * 15^8 is divided by 5?  [#permalink]

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New post 23 Aug 2016, 17:28
duahsolo wrote:
What is the remainder when the number 14^2 * 15^8 is divided by 5?

A) 0
B) 1
C) 2
D) 4
E) 5

Multiplying 14^2 by 15^8 will give a number wholly divisible by 5.

Hene, Option A is CORRECT



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Re: What is the remainder when the number 14^2 * 15^8 is divided by 5?  [#permalink]

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New post 24 Aug 2016, 04:25
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Re: What is the remainder when the number 14^2 * 15^8 is divided by 5?  [#permalink]

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New post 09 Dec 2017, 01:12
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Re: What is the remainder when the number 14^2 * 15^8 is divided by 5? &nbs [#permalink] 09 Dec 2017, 01:12
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