# Prime Factors of 278

Prime Factors of 278 are 2 and 139

#### How to find prime factors of a number

 1.   Prime Factorization of 278 by Division Method 2.   Prime Factorization of 278 by Factor Tree Method 3.   Definition of Prime Factors 4.   Frequently Asked Questions

#### Steps to find Prime Factors of 278 by Division Method

To find the primefactors of 278 using the division method, follow these steps:

• Step 1. Start dividing 278 by the smallest prime number, i.e., 2, 3, 5, and so on. Find the smallest prime factor of the number.
• Step 2. After finding the smallest prime factor of the number 278, which is 2. Divide 278 by 2 to obtain the quotient (139).
278 ÷ 2 = 139
• Step 3. Repeat step 1 with the obtained quotient (139).
139 ÷ 139 = 1

So, the prime factorization of 278 is, 278 = 2 x 139.

#### Steps to find Prime Factors of 278 by Factor Tree Method

We can follow the same procedure using the factor tree of 278 as shown below:

So, the prime factorization of 278 is, 278 = 2 x 139.

#### What does Prime factor in mathematics mean?

Prime numbers, in mathematics are all those whole numbers greater than 1 having exactly two divisors that is 1 and the number itself. When we express any number as the product of these prime numbers than these prime numbers become prime factors of that number. Eg- Prime Factors of 278 are 2 x 139.

#### Properties of Prime Factors

• Two prime factors of a given number are always coprime to each other.
• 2 is the only even prime factor any number can have.
• Two prime factors are always coprime to each other.
• 1 is neither a prime number nor a composite number and also 1 is the factor of every given number. So, 1 is the factor of 278 but not a prime factor of 278.

• Which is the smallest prime factor of 278?

Smallest prime factor of 278 is 2.

• Is 278 a perfect square?

No 278 is not a perfect square.

• What is the prime factorization of 278?

Prime factorization of 278 is 2 x 139.

• What are the factors of 278?

Factors of 278 are 1 , 2 , 139 , 278.

• What is the product of all prime factors of 278?

Prime factors of 278 are 2 x 139. Therefore, their product is 278.

• What numbers are the prime factors of 278?

Prime factors of 278 are 2 , 139.

• What is the sum of all odd prime factors of 278?

Prime factors of 278 are 2 , 139, out of which 139 are odd numbers. So, the sum of odd prime factors of 278 is 139 = 139.

• Is there any even prime factor of 278?

Yes there is a even prime factor of 278.

• What is the product of all odd prime factors of 278?

Prime factors of 278 are 2 , 139, out of which 139 are odd numbers. So, the product of odd prime factors of 278 is 139 = 139.