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Because fifteen is a compound number. That is it is a multiple of 5 & 3 .
lenpollock
Wiki User
∙ 14y agoBecouse 15 can be divided by 5 and by 3
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What is the one millionth prime number?
15,485,863 (fifteen million four hundred eighty five thousand eight hundred sixty three) is the one millionth prime number.
What number is .0015?
Fifteen ten thousandths
What is you called when the prime factorization of a number is 1 and itself?
You is called a prime number!You is called a prime number!You is called a prime number!You is called a prime number!
Is a factor a prime number?
A factor can or cannot be a prime number Ex: 2 is the factor of all other even numbers its a prime number but 9 is a factor of 18 and its not a prime number A prime is a factor but a factor being a prime number varies
What is a prime number times a prime number?
A prime number times a prime number is a composite number. Since prime numbers, except for 2, are odd numbers, a prime number times a prime number is usually an odd number. It will only be an even number if one of the prime numbers is 2. A prime number times a prime number will be a number with four factors unless both prime numbers are the same, in which case it will be a square number with only three factors.
What is the next biggest prime number after 15?
Seventeen is the next prime number after fifteen.
What are prime numbers in the number fifteen?
15 is made of the two prime factors, 3 and 5.
Is fifteen a prime number?
No, because it can be divided by 5 and by 3. Hope this helps!
What is the one millionth prime number?
15,485,863 (fifteen million four hundred eighty five thousand eight hundred sixty three) is the one millionth prime number.
What is a prime number bigger than fifteen but smaller than thirty?
17, 19, 23, 29
Why cant a multiple of 15 be a prime number?
A prime number has no factors other than 1 and itself. Each multiple of fifteen includes 3, 5, and 15 among its factors.
can fifteen over twenty six simplified?
your face lolNo because they have no factors in common, because 26 is twice 13, a prime number.
What is the correct spelling for 15?
No - the word for the number 15 is spelled fifteen.
What are the sum of first fifteen prime numbers?
Their sum is 328.
What are the prime numbers between ten and fifteen?
11 and 13
Is ninety a prime number?
No. Prime numbers are numbers that can only be divided evenly by themselves or one. 90 can be divided by ten, five, nine, two, forty-five, eighteen, three, thirty, six, and fifteen.
What is prime factorization of 3 5 15?
Three and five are prime ,so the don't have prime factorization. Fifteen's prime factorization is 3 x 5.
