Table of Contents

- 1 What is the highest prime number of 420?
- 2 What is the biggest prime factor?
- 3 What is the LCM of 420?
- 4 What is the HCF of 30 and 20?
- 5 What is the greatest prime factor of 77?
- 6 What is the greatest prime factor of 100?
- 7 How to find the largest prime factor of a number?
- 8 What are the prime factors of the number 2, 010?

## What is the highest prime number of 420?

12 and 35 are the factor-pairs of 420. 420 is the highest composite factor of 420. 420 is the highest composite factor of 420. 2 , 3, 5 and 7 are the prime factors of 420.

## What is the biggest prime factor?

For example, if we look at the number 6 , it has four factors: 1 , 2 , 3 , 6 . However, of these factors, 2 and 3 are prime numbers. As 3 is greater than 2 , 3 is said to be the largest prime factor of number 6 .

**How do you find the greatest prime factor?**

To find the greatest common factor (GCF) between numbers, take each number and write its prime factorization. Then, identify the factors common to each number and multiply those common factors together. Bam! The GCF!

**What is the largest prime factor of 10?**

Factors of 10 are the list of integers that we can split evenly into 10. There are overall 4 factors of 10 i.e. 1, 2, 5 and 10 where 10 is the biggest factor. The Prime Factors of 10 are 1, 2, 5, 10 and its Factors in Pairs are (1, 10) and (2, 5).

### What is the LCM of 420?

The multiples of 420 are 420 × 1 = 420, 420 × 2 = 840, 420 × 3 = 1260, 420 × 4 = 1680, 420 × 5 = 2100, . . . . . . . . . 420 × 12 = 5040, 420 × 13 = 5460, 420 × 14 = 5880, 420 × 15 = 6300, . . . . . . . . . and so on.

### What is the HCF of 30 and 20?

10

Answer: HCF of 20 and 30 is 10.

**What is the largest prime factor of 5 8?**

GCF of 5 and 8 is the largest possible number that divides 5 and 8 exactly without any remainder. The factors of 5 and 8 are 1, 5 and 1, 2, 4, 8 respectively. There are 3 commonly used methods to find the GCF of 5 and 8 – Euclidean algorithm, long division, and prime factorization.

**Is 7 a prime factor?**

The first 10 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29. There are 25 prime numbers between 1 and 100. Prime numbers can continue well past 100.

## What is the greatest prime factor of 77?

Factors of 77

- Factors of 77: 1, 7, 11 and 77.
- Prime Factorization of 77: 77 = 7 × 11.

## What is the greatest prime factor of 100?

So, the prime factors of 100 are written as 2 x 2 × 5 x 5 or 22 x 52, where 2 and 5 are the prime numbers. It is possible to find the exact number of factors of a number 100 with the help of prime factorisation. The prime factor of the 100 is 22 x 52. The exponents in the prime factorisation are 2 and 2.

**What are the 5 multiples of 11?**

The first 5 multiples of 11 are 11, 22, 33, 44, and 55.

**How to calculate the prime factorization of 100?**

Prime factorization of 100 is 2 x 2 x 5 x 5 or 2 2 x 5 2 Prime factorization of 76 is 2 x 2 x 19 or 2 2 x 19 1 Prime factorization of 50 is 2 x 5 x 5 or 2 x 5 2 Prime factorization of 48 is 2 x 2 x 2 x 2 x 3 or 2 4 x 3 1

### How to find the largest prime factor of a number?

Find the largest prime factor of a number. Recommended: Please try your approach on {IDE} first, before moving on to the solution. The approach is simple, just factorise the given number by dividing it with the divisor of a number and keep updating the maximum prime factor. See this to understand more. Attention reader!

### What are the prime factors of the number 2, 010?

The numbers in bold above are the prime factors. If there are multiples, you only count them one time. This leads us to our prime factors of: We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 67 = 2,010

**How to calculate the prime factorization of 50?**

Prime factorization of 50 is 2 x 5 x 5 or 2 x 5 2 Prime factorization of 48 is 2 x 2 x 2 x 2 x 3 or 2 4 x 3 1 Prime factorization of 36 is 2 x 2 x 3 x 3 or 2 2 x 3 2 Prime factorization of 20 is 2 x 2 x 5 or 2 2 x 5 1