# What is the factors of 18 and 42?

**Author: Cindy Boyle**| Last update: Sunday, December 19, 2021

The factors of 18 and 42 are 1, 2, 3, 6, 9, 18 and 1, 2, 3, 6, 7, 14, 21, 42 respectively.

## What are the factors of 18?

So all factors of 18: 1, 2, 3, 6, 9, and 18.

## How many common factors does 18 and 42 have?

There are 4 common factors of 18 and 42, that are 1, 2, 3, and 6. Therefore, the highest common factor of 18 and 42 is 6.

## What are the factors of 42?

- Factors of 42: 1, 2, 3, 6, 7, 14, 21, and 42.
- Factors of -42: -1, -2, -3, -6, -7, -14, -21 and -42.
- Prime Factorization of 42: 42 = 2 × 3 × 7.

## What is the GCF of 18 & 42?

The GCF of 18 and 42 is 6.

## Factors of 18

## What is the greatest common factor of 42?

The GCF of 42 and 63 is 21. To calculate the greatest common factor (GCF) of 42 and 63, we need to factor each number (factors of 42 = 1, 2, 3, 6, 7, 14, 21, 42; factors of 63 = 1, 3, 7, 9, 21, 63) and choose the greatest factor that exactly divides both 42 and 63, i.e., 21.

## What is the HCF of 18 and 42 24?

Common factor method

Therefore, common factors of 18, 24 and 42 are 1, 2, 3 and 6. HCF of 18, 24 and 42 is 6.

## How do you find the factor of a number?

- Find all the numbers less than or equal to the given number.
- Divide the given number by each of the numbers.
- The divisors that give the remainder to be 0 are the factors of the number.

## What are factors and primes?

Prime number: A prime is a number that has only two factors which are 1 and itself. Multiple: A number in the given numbers times table. Factor: A number that fits into another number exactly. LCM: The smallest number that is in the times tables of the given numbers.

## What is the LCM of 18 42 and 48?

The least common multiple of 18, 42 and 48 is 1008.

## How do you find the HCF?

The HCF of two or more numbers is the highest common factor of the given numbers. It is found by multiplying the common prime factors of the given numbers. Whereas the Least Common Multiple (LCM) of two or more numbers is the smallest number among all common multiples of the given numbers.

## What is the smallest number that has both 4 and 18 as factors?

FAQs on LCM of 4 and 18

The LCM of 4 and 18 is 36. To find the LCM (least common multiple) of 4 and 18, we need to find the multiples of 4 and 18 (multiples of 4 = 4, 8, 12, 16 . . . . 36; multiples of 18 = 18, 36, 54, 72) and choose the smallest multiple that is exactly divisible by 4 and 18, i.e., 36.

## What is P factor of 18 )?

Solution: Factors of 18 = 1, 2, 3, 6, 9 and 18. Factors of 19 = 1 and 19. The common factor of 18 and 19 is 1, as 19 is a prime number.

## What are multiples of 18?

Next, we list the first several multiples of eighteen: 18, 36, 54, 72, 90, 108, 126, 144 . . . By comparing the multiples of eight and eighteen, we can see that the smallest one that they share is 72.

## How do you do a factor tree for 18?

So, the prime factorization of 18 is 18= 2 × 3 × 3. A factor tree is not unique for a given number. Instead of expressing 18 as 2 × 9, we can express 18 as 3 × 6.

## What are maths factors?

A factor is a number that divides into another number exactly and without leaving a remainder. Most numbers have an even number of factors; however, a square number has an odd number of factors. A prime number has only two factors - the number itself and 1.

## How do you explain factors to a child?

Definition of Factors

Factors are numbers which you can multiply together to get another number. For Example : The numbers 2 and 3 are factors of 6 because 2 x 3 = 6.

## What is the factor of 100?

The factors of 100 are 1, 2, 4, 5, 10, 20, 25, 50 and 100.

## What is the HCF of 18 42 and 84?

The common factors for 18,42,84 18 , 42 , 84 are 1,2,3,6 1 , 2 , 3 , 6 .

## What is the highest common factor of 18?

The factors of 18 are 1, 2, 3, 6, 9, 18. The factors of 27 are 1, 3, 9, 27. The common factors of 18 and 27 are 1, 3 and 9. The greatest common factor of 18 and 27 is 9.

## What is the highest common factor of 18 and 27?

There are 3 common factors of 18 and 27, that are 1, 3, and 9. Therefore, the highest common factor of 18 and 27 is 9.