# What are 2 numbers that have 3 factors?

## What are 2 numbers that have 3 factors?

Answer: As it turns out, the only positive integers with exactly three factors are the squares of primes. For instance, the factors of 9 are 1, 3, and 9, and the factors of 49 are 1, 7, and 49.

## What is a number with multiple factors?

9 is a multiple of 3 is true because 3 x 3 = 9. 5 is a factor of 15 is true because: 5 x 3 = 15. 7 is a multiple of 21 is false because many are always greater than equals that number….What are the differences between a factor and a multiple?

Factor Multiple
3 Factors are a number are limited Multiples are endless

Which number has 3 as a factor?

Table of Factors and Multiples

Factors Multiples
1, 3 3 6
1, 2, 4 4 8
1, 5 5 10
1, 2, 3, 6 6 12

### What are the factors of 70?

Factors of 70

• Factors of 70: 1, 2, 5, 7, 10, 14, 35 and 70.
• Negative Factors of 70: -1, -2, -5, -7, -10, -14, -35 and -70.
• Prime Factors of 70: 2, 5, 7.
• Prime Factorization of 70: 2 × 5 × 7 = 2 × 5 × 7.
• Sum of Factors of 70: 144.

### How many factors does 20 have?

6 factors
The factors of 20 are 1, 2, 4, 5, 10, 20. Therefore, 20 has 6 factors.

What are factors of 18?

Factors of 18

• Factors of 18: 1, 2, 3, 6, 9 and 18.
• Negative Factors of 18: -1, -2, -3, -6, -9 and -18.
• Prime Factors of 18: 2, 3.
• Prime Factorization of 18: 2 × 3 × 3 = 2 × 32
• Sum of Factors of 18: 39.

#### Which of the following number has 3 as 9 factor?

As it turns out, the only positive integers with exactly three factors are the squares of primes. For instance, the factors of 9 are 1, 3, and 9, andand the factors of 49 are 1, 7, and 49.

#### What does a factor of 3 mean?

Last year there were 3000 observations, this year there are only 1000. This is described as showing a “fall by a factor of 3”. This phrase doesn’t ring true. If a factor of 3 is a 1/3, then a fall by a third would be down to 2000. So the phrase is meant to represent a fall to a third.

What are two factors of 70?

Factors of 70 are: 1, 2, 5,7,14, 10, 35 and 70 = 8 factors.

## What is the factor of 71?

Since 71 is a prime number, it has only two factors, 1 and 71.

## What are 2 factors of 20?

The factors of 20 are 1, 2, 4, 5, 10, 20.

What are the 11 factors?

Table of Factors and Multiples

Factors Multiples
1, 3, 9 9 72
1, 2, 5, 10 10 80
1, 11 11 88
1, 2, 3, 4, 6, 12 12 96

### When is a factor of two numbers common?

It is a common factor when it is a factor of two (or more) numbers. Here is another example with three numbers: Example: The common factors of 15, 30 and 105 Factors of 15 are 1, 3, 5, and 15

### What is the meaning of factor in numbers?

The meaning of factor is a whole number that can divide a greater number evenly. Each prime number will have only two factors, i.e. 1 and number itself, whereas each composite number will have more than two factors, that include prime factors also.

How to find the total number of factors for a number?

Number of Factors. The formula for the total number of factors for a given number is given by; Total Number of Factors for N = (a+1) (b+1) (c+1) Sum of Factors. The formula for the sum of all factors is given by; Sum of factors of N = [(X a+1-1)/X-1] × [(Y b+1-1)/Y-1] × [(Z c+1-1)/Z-1] Product of Factors

#### Which is a factor of the number 12?

Factors are numbers we can multiply together to get another number: A number can have many factors: Factors of 12 are 1, 2, 3, 4, 6 and 12 … because 2 × 6 = 12, or 4 × 3 = 12, or 1 × 12 = 12.