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What is the least composite number that has all of the first 5 prime numbers as factors?
Wiki User
∙ 16y ago
2 x 3 x 5 x 7 x 11 = 2310.
Wiki User
∙ 16y ago
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How do you find prime and composite numbers?
By factoring them. Prime numbers have only two factors. Composite numbers have three or more.
If a composite number has the first five prime numbers as factors what is the smallest number it could be?
Just multiply the first five prime numbers! 2x3x5x7x11 = 6x35x11 = 210x11 = 2310. Any multiple of this number "has the first five prime numbers as factors", but 2310 is the smallest such number.
How do you notice that it is factors or prime or composite numbers?
First of all, every number is a factor - of its multiples.There is no general way to distinguish between prime and composite numbers. At one level, though, there are some simple ways. If the number is not 2, but ends in 0, 2, 4, 6 or 8 then it is a composite, If the number is not 5 but ends in 0 or 5 it is composite. If the number is not 3 but the sum of all the digits of a number is 3 or divisible by 3, then it is composite. There are moderately complicated divisibility rules for 7 and 11. But this method does not identify all composite numbers and there is no guaranteed method.
What are the 12 first composite numbers?
The first 12 composite numbers are.... 4,6,8,9,10,12,14,15,16,18,20,21,A composite number is basically any number that can go into that number, so like 15 is a composite number because 15x1=15,and then 5x3=15. That's two or more pair of numbers.
Is a composite number times a composite number always composite?
Yes. To be composite, the first number has at least 2 prime factors, the second number also has at least prime factors; the product of the two will have at least 4 prime factors, so it must be a composite number.
What is the 4th composite number?
Composite numbers are numbers with more than 2 factors. The first composite number is 4. The next composite numbers are 6, 8, and 9. Thus, the fourth composite number is 9.
How do you find prime and composite numbers?
By factoring them. Prime numbers have only two factors. Composite numbers have three or more.
What lowest composite number has the first five prime numbers as factors?
It is 2310.
What is the smallest number which has among it's factors the first five prime numbers and the first four composite numbers?
27720
Who discover the prime and composite numbers?
You do! You first list all the factors of a number. A prime number has only 2 factors which are 1 and itself. Composite numbers are everything else except 1 and 0. 1 and 0 are neither prime, nor composite.
What does first factor mean when rounding?
It means to express a number as the product of its factors. Factors are either composite numbers or prime numbers (except that 0 and 1 are neither prime nor composite).
If a composite number has the first five prime numbers as factors what is the smallest number it could be?
Just multiply the first five prime numbers! 2x3x5x7x11 = 6x35x11 = 210x11 = 2310. Any multiple of this number "has the first five prime numbers as factors", but 2310 is the smallest such number.
How is 4567278 a composite number?
First, you have to know the difference between Prime Numbers and Composite Numbers. Prime Numbers are numbers that has only two factors: 1 and itself. Composite Numbers are numbers that have factors other than 1 and itself. Composite numbers are always even, with only one exception: number 2. Two is the ONLY EVEN PRIME NUMBER. Never will you encounter another even prime number because it will always have AT LEAST 3 factors. # ITSELF. # ONE. # TWO. Now that we know the difference between Prime and Composite, we can answer your question. 4,567,278 is an even number. It is divisible by itself, one, two and probably more numbers. Therefore, it is COMPOSITE!
What are the first composite numbers?
The first composite number is 4.
How do you notice that it is factors or prime or composite numbers?
First of all, every number is a factor - of its multiples.There is no general way to distinguish between prime and composite numbers. At one level, though, there are some simple ways. If the number is not 2, but ends in 0, 2, 4, 6 or 8 then it is a composite, If the number is not 5 but ends in 0 or 5 it is composite. If the number is not 3 but the sum of all the digits of a number is 3 or divisible by 3, then it is composite. There are moderately complicated divisibility rules for 7 and 11. But this method does not identify all composite numbers and there is no guaranteed method.
What is the smallest composite number that has three different prime factors?
Just multiply the first three prime numbers together.
What are the 12 first composite numbers?
The first 12 composite numbers are.... 4,6,8,9,10,12,14,15,16,18,20,21,A composite number is basically any number that can go into that number, so like 15 is a composite number because 15x1=15,and then 5x3=15. That's two or more pair of numbers.
