What happens when you multiply 142857 by a number that is not a multiple of seven?

Understanding Cyclic Numbers

Interactive Video
•
Mathematics
•
9th - 12th Grade
•
Hard

Emma Peterson
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
The number doubles
You get a permutation of 142857
It becomes a prime number
The result is always zero
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a property of the number 142857 when multiplied by numbers 1 to 6?
It forms a palindrome
It results in a sequence of zeros
It becomes a perfect square
It produces a permutation of itself
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a cyclic number?
A number that is always prime
A number that never changes
A number that repeats in a cycle when multiplied
A number that is divisible by ten
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How is the number 142857 related to the decimalization of fractions?
It is unrelated to fractions
It is the decimalization of 1/3
It appears in the decimalization of 1/5
It appears in the decimalization of 1/7
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What percentage of prime numbers result in cyclic numbers?
25%
37.3%
10%
50%
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What unique property does the number 142857 have when its digits are rearranged?
It forms a palindrome
It becomes a prime number
It results in all nines
It forms a perfect square
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What happens when you square the first three digits of 142857?
It forms a sequence of zeros
It becomes a prime number
It doubles in value
It results in a permutation of 142857
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