# Question: What are the factor of 15 and 18?

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The factors of 15 and 18 are 1, 3, 5, 15 and 1, 2, 3, 6, 9, 18 respectively. There are 3 commonly used methods to find the GCF of 15 and 18 - long division, prime factorization, and Euclidean algorithm.

## What is the prime factorization of 15 and 18?

SolutionWrite each number as a product of primes.15=3⋅518=2⋅3⋅3Write each number as a product of primes, matching primes vertically when possible.15=3⋅518=2⋅3⋅3Bring down the primes in each column.Multiply the factors to get the LCM.LCM = 2 • 3 • 3 • 5 The LCM of 15 and 18 is 90.Dec 20, 2020

## What are factor for 18?

According to the definition of factors, the factors of 18 are 1, 2, 3, 6, 9, and 18. So,18 is a composite number as it has more factors other than 1 and itself.

## What are the factor of 15?

Factors of 15 by Prime Factorization The factors of 15 are 1, 3, 5, and 15.

## What multiples do 15 and 18 have in common?

To calculate the LCM of 15 and 18 by listing out the common multiples, we can follow the given below steps: Step 1: List a few multiples of 15 (15, 30, 45, 60, 75, 90, . . . ) and 18 (18, 36, 54, 72, 90, . . . . ) Step 2: The common multiples from the multiples of 15 and 18 are 90, 180, . . .

## What is the H.C.F of 18?

Factors of 18 = 1, 2, 3, 6, 9 and 18. Therefore, common factor of 12 and 18 = 1, 2, 3 and 6. Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor]. 6.

## What is the H.C.F of 9 15 and 18?

As you can see when you list out the factors of each number, 3 is the greatest number that 9, 15, and 18 divides into.

## What is the factor of 18 and 27?

9 The GCF of 18 and 27 is 9. To calculate the greatest common factor (GCF) of 18 and 27, we need to factor each number (factors of 18 = 1, 2, 3, 6, 9, 18; factors of 27 = 1, 3, 9, 27) and choose the greatest factor that exactly divides both 18 and 27, i.e., 9.

## Which is the smallest factor of 15 answer?

1 Factors of 15 are the whole numbers that can divide the original number, completely. There are four factors of 15, i.e, 1, 3, 5 and 15. Hence, the smallest factor is 1 and the greatest factor of 15 is 15, itself.

## What is the factor of 10?

The factors of 10 are 1, 2, 5, 10 and its negative factors are -1, -2, -5, -10.

## What is the HCF of 18?

Factors of 18 = 1, 2, 3, 6, 9 and 18. Therefore, common factor of 12 and 18 = 1, 2, 3 and 6. Highest common factor (H.C.F) of 12 and 18 = 6 [since 6 is the highest common factor]. 6.

## What is the HCF 18 and 24?

6 Answer: HCF of 18 and 24 is 6.

## What is the HCF of 18 and 16?

Well, The HCF (Highest Common Factor) of 16 and 18 is 2.

## Why is 18 a perfect square?

A perfect square is a number that is generated by multiplying two equal integers by each other. For example, the number 9 is a perfect square because it can be expressed as a product of two equal integers: 9 = 3 x 3....Example 1.IntegerPerfect square17 x 1728918 x 1832419 x 1936120 x 2040021 more rows

## IS 400 a perfect square?

The square root of a number is the number that when multiplied to itself gives the original number as the product. This shows that 400 is a perfect square.

## What is the GCF of 15 and 30?

15 Answer: GCF of 15 and 30 is 15.

## Which is the smallest factor of 15 15?

As we can see 1 is the smallest number. So 1 is the smallest factor of 15.