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Q: What is the sum ratio of the number of one digit prime numbers and the number of one digit composite numbers?
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What is the ratio of the number of one-digit prime numbers and the number of one-digit composite numbers?

The ratio of the number of one-digit prime numbers to the number of one-digit composite numbers is one to one. The one-digit prime numbers are 2, 3, 5, and 7. The one-digit composite numbers are 4, 6, 8, and 9. Therefor, the ratio is 4:4, which simplifies to 1:1.


What is the largest 2 digit prime number?

97A 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. 97 is the largest 2 digit prime number.


What are prime digits and composite digits?

It would probably refer to a digit that is a prime number, or a composite number. Note that mathematicians normally talk about prime and composite NUMBERS, not individual digits.


Are there any 8 digit prime numbers?

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. yes, there are 8 digit prime numbers.


What is the ratio of 1 digit prime numbers and 1 digit composite number?

4/4 = 1


Is 29 a two digit composite number?

no it is a prime number (prime means its multiples are only 1 and itself composite numbers can have multiples of many other things)


Are all prime numbers composite no?

no. There is a prime number and a composite number. Therefor, all prime numbers are not composite.


What is the smallest three-digit number divisible by the first three prime numbers and the first three composite numbers?

The smallest three-digit number divisible by the first three prime numbers (2, 3, and 5) and the first three composite numbers (4, 6, and 8) is 120.


What is the opposite of a prime number?

The 'opposite' status of a number that is not prime is a composite number.Except for 0 and 1, all numbers that are not prime (i.e. they are multiples of other numbers) are called composite numbers.The opposite of a prime number would be a number that is not prime. Almost all numbers that are not prime are composite numbers. A prime number is a number that has exactly two factors. A composite number has more than two factors. However, composite numbers do not include all numbers that are not prime. The number 1 has only one factor, so it is neither prime nor composite - it is unity.


Does the prime factorization of any composite number include prime and composite numbers?

Prime factorization never includes a composite number. All numbers in prime factorization must be prime numbers.


What two-digit prime number has the sum of its digits that is not 7 but is a multiple of 7?

No two digit prime number exists that is a multiple of 7. All two digit numbers that are multiples of 7 are compositenumbers.


How many positive prime numbers have a ones digit of 5?

Only one positive prime number has a 5 in the ones digit. That prime number is 5. All other numbers with a 5 in the ones digit are composite because they will be divisible by 5.


Is 43 a 2 digit odd number that is composite is 42 a two digit number that is composite?

42 is composite, 43 is prime.


What is the largest 3 digit prime number whose square root is a prime number?

There is no three digit prime number whose square root is a prime number. Prime numbers have no factors other than 1 and themselves. Any number having a prime number as a square root is a composite number.


Can you change composite numbers to prime numbers?

No, You can't change a composite number to prime number.


What is the smallest three digit number divisible by the first three prime number and the first number three composite numbers?

120


What are prime numbers and the composite number?

Prime numbers have two factors, composite numbers have more than two.


What are prime the numbers and the composite numbers?

A prime number is 2 factors and a composite number is 3 or more!


Is 97 a least prime 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. 97 is the highest 2 digit prime number.


What are the factors of 5 in composite numbers?

5 is a prime number having 1 and 5 as its only factors. It makes no difference to the factors of 5 if the digit 5 is in composite numbers.


Is 18 prime or composite?

composite The number 18 is a composite number. It is a composite number because composite numbers are whole numbers that have three or more factors.


What is the largest composite digit?

The largest single digit composite number is 9. The largest prime number is 17 million digits long. The definition of a composite number is any number that has at least one positive divisor other than one or the number itself (it is not a prime number). The largest composite digit is therefore longer than the largest prime number by at leaf +1.


Is every number in the nineties composite or prime what the correct?

The only prime number in the 90s is 97. So out of ten numbers one is a prime number and the remaining nine numbers are composite numbers. So 90s comprises of both prime numbers and composite numbers.


What number is a prime number and composite number?

No numbers are prime AND composite. The number 1 is neither.


Is 55 composite or prime?

55 has factors other than 1 and itself, so it is not a prime number. For example, 55 is divisible by 5. (You can tell this because the last digit is a 5. If the last digit - the digit in the ones place - is a 5 or a 0, the number is divisible by 5.) Therefore, 55 is a composite number.composite

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