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S_A_V [24]
3 years ago
11

John took his pennies out of his piggy bank and discovered that he could put his pennies in equal piles of three, four, five, si

x, seven or eight. What is the least number of pennies that he could have had?
Mathematics
2 answers:
alexgriva [62]3 years ago
3 0

Answer:

Least number of pennies is 840


Step-by-step explanation:

To get the least number of pennies, we need to figure out the LCM of 3, 4, 5, 6, 7, & 8.


We do prime factorization of each number and take each unique digit the most number of times it occurs in any one of them.


3 is 3

4 is 2*2

5 is 5

6 is 3*2

7 is 7

8 is 2*2*2


There are 2s, 3s, 5s, and 7s. Two occurs three times (highest) in 8, so we take 2 three times, 3,4,5,&7 all occur highest 1 time. So we take them one.


So LCM = 2*2*2*3*5*7 = 840

Murrr4er [49]3 years ago
3 0
The answer is 840 I think
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Explanation:

An arithmetic sequence has a common difference, meaning you use addition or subtraction to get from term to term, and each term in the sequence is an equal distance apart.

A geometric sequence has a common ratio, meaning that you use multiplication or division to get from term to term.

If you look at this sequence:

14-2 = 12

12-2 = 10

10-2 = 8

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etc.

Because you are subtracting 2 each time, 2 is the common difference, and the sequence is arithmetic.

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3 years ago
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Step-by-step explanation:

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