## Are 3 and 7 prime factors?

The first few prime numbers are: 2, 3, 5, 7, 11, 13, 17, 19 and 23, and we have a prime number chart if you need more.

## What is the least prime factor of 7?

To get the prime factorization of 7, we divide it by its smallest prime factor, which is 7.

What are the prime factor of 7?

The factors of 7 are 1 and 7. As the number 7 is a prime number, the factors of 7 are one and the number itself.

Is 3 a prime factor?

The first five prime numbers: 2, 3, 5, 7 and 11. A prime number is an integer, or whole number, that has only two factors — 1 and itself. For example, 3 is a prime number, because 3 cannot be divided evenly by any number except for 1 and 3. However, 6 is not a prime number, because it can be divided evenly by 2 or 3.

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### What is the prime factors of 7?

The Pair Factors of 7 are (1, 7) and its Prime Factors is 1, 7.

### What is least factor of a number?

The number 1 is the smallest factor of every number. Every number will have a minimum of two factors, 1 and the number itself. A number that has only two factors, 1 and the number itself, is called a prime number.

What number has a factor of 7?

Table of Factors and Multiples

Factors Multiples
1, 2, 3, 6 6 54
1, 7 7 63
1, 2, 4, 8 8 72
1, 3, 9 9 81

What is the least prime factor of a +B?

If 3 is the least prime factor of number a and 7 is the least prime factor of number b, then the least prime factor of a + b, is The least prime factor of a+b has to be 2; unless a +b is a prime number greater than 2.

## What is the least prime factor of two odd numbers?

Because both numbers are odd (otherwise 2 would be the least prime factor), this means that a + b is even.

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## Can A+B be a prime number greater than 2?

Then the least prime factor of a is 2; which is not 3 or 7. So a can not be an even number nor can b be an even number. Hence a+b can not be a prime number greater than 2 if the least prime factor of a is 3 and b is 7. Thus the answer is 2.