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5 min read
Is 57 a prime number?
Blog K8
Fifty-seven is closely related to prime numbers. For example, 57’s digits are both prime numbers: 5 and 7. Also, 57 can be written using the primes numbers 2 and 5: $$57\;=\;5^2\;+\;2^5\;$$ However, 57 itself is not a prime number, as we will study next. We will start recalling some definitions that we have widely discussed […]

Dino

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6 min read
Is 43 a prime number?
Blog K8
How many random people should be gathered to ensure that at least five of them will know each other, or at least five of them will be complete strangers to each other? You guessed right, 43 people are needed! Another property of 43 is that it is a prime number, as we will see next. We […]

Dino

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2 min read
What is 7/12 as a decimal?
Blog K8
7/12 as a decimal is 0.5833… Want to practice? A fraction is the representation of the number of parts taken out of the whole parts. It has the numerator and the denominator. The numerator is the value at the top of the fraction and the denominator is the value at the bottom of the fraction. […]

Dino

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3 min read
What is 1/5 as a decimal?
Blog K8
1/5 as a decimal is 0.2 Want to practice? What is an equivalent fraction? Equivalent fractions are different fractions that simplify to the same basic fraction. The equivalent fraction is obtained by multiplying the same number to the numerator and the denominator. We use the concept of the equivalent fraction to convert the given fraction […]

Dino

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5 min read
Is 51 a prime number?
Blog K8
The most common questions in mathematics about number 51 are: What are its factors? Is it divisible by 3? Is it a multiple of 9? Is it a prime or a composite number? Those are all questions that we will answer next! We will start recalling some definitions that we have widely discussed in our […]

Dino

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10 min read
PS, What It Means and How You Can Use It
Blog K8
From casual chats to formal emails, you may have seen people write ‘PS’ in various forms of text communication. But what does it mean? It is a super common acronym that we use as part of our everyday language. It is short for the Latin word, ‘post scriptum,’ meaning ‘post script’. It translates to ‘written […]

Dino

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10 min read
Word Scrambler- What is it?
Blog
A word scrambler is helpful to create different types of word scrambling and unscrambling games. You can play these games at a birthday party, baby shower, or even a wedding party. The games are also popular among parents and teachers, who use them as an educational tool with kids. You can easily use the word […]

Dino

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6 min read
Is 47 a prime number?
Blog K8
What do the numbers 47, 347, 547, 647, and 947 have in common? They are all prime numbers! More amazingly, there are 47 occurrences of 47 in the first 1000 prime numbers! We will focus now on the first occurrence because we are about to learn why 47 is a prime number. We will start […]

Dino

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