What are the factors of 42?

The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42.

What is the prime factor of 42?

The only way to write 42 as the product of primes (except to change the order of the factors) is 2 × 3 × 7. We call 2 × 3 × 7 the prime factorization of 42.

Which number is a factor of 12?

The factors of 12 are 1, 2, 3, 4, 6, and 12, because each of those divides 12 without leaving a remainder (or, alternatively, each of those is a counting number that can be multiplied by another counting number to make 12).

What are two factors of 12?

The factors of 12 are 1, 2, 3, 4, 6 and 12. The factors of 11 are 1 and 11. As 11 is a prime number, the common factor of 12 and 11 is 1.

How many factors has 16?

So 1, 2, 4, and 8 are factors of 16. Students only need to try the numbers up to half the number for which they are finding the factors. Numbers greater than half will not divide evenly.

Is 12 a composite number?

which is not prime (i.e., which has factors other than 1 and itself). The first few composite numbers (sometimes called “composites” for short) are 4, 6, 8, 9, 10, 12, 14, 15, 16.

What is prime number and composite?

A prime number has exactly two factors so 1 isn’t prime. A composite number has more than 2 factors, so 1 isn’t composite.

Which is the composite number?

A composite number is a positive integer that can be formed by multiplying two smaller positive integers. Equivalently, it is a positive integer that has at least one divisor other than 1 and itself. For example, the integer 14 is a composite number because it is the product of the two smaller integers 2 × 7.

How do you prove a number is composite?

The best way to figure out if it’s a composite number is to perform the divisibility test. To do this, you should check to see if the number can be divided by these common factors: 2, 3, 5, 7, 11, and 13. If the number is even, then start with the number 2. If the number ends with a 0 or 5, try dividing by 5.

What does Prime mean in math?

Prime numbers are numbers that have only 2 factors: 1 and themselves. For example, the first 5 prime numbers are 2, 3, 5, 7, and 11. By contrast, numbers with more than 2 factors are call composite numbers.

What is the highest 2 digit prime number?

97 is: the 25th prime number (the largest two-digit prime number in base 10), following 89 and preceding 101.

Which is the only even prime number?

2

Is 23 a prime factor?

A prime number has Ω(n) = 1. The first: 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37 (sequence A000040 in the OEIS). There are many special types of prime numbers.

What are the four multiples of 6?

Here again are the multiples of 6, 0, 6, 12, 18, 24, 30, 36, 42, 48, 54, 60, 66, 72, 78, 84, 90, 96,… If we divide any of these multiples by 6, we get a quotient with remainder zero.

What is a prime number factor?

Prime factors are factors of a number that are, themselves, prime numbers. There are many methods to find the prime factors of a number, but one of the most common is to use a prime factor tree.

What are the prime factors of 30?

The number 30 can be written in prime factorization as 2 x 3 x 5. All of the factors are prime numbers.

Begin typing your search term above and press enter to search. Press ESC to cancel.