Prime Factorization of 155

What is the Prime Factorization of 155?

Answer: Prime Factors of 155: 5, 31

Explanation of number 155 Prime Factorization

Prime Factorization of 155 it is expressing 155 as the product of prime factors. In other words it is finding which prime numbers should be multiplied together to make 155.

Since number 155 is a Composite number (not Prime) we can do its Prime Factorization.

To get a list of all Prime Factors of 155, we have to iteratively divide 155 by the smallest prime number possible until the result equals 1.

Here is the complete solution of finding Prime Factors of 155:

The smallest Prime Number which can divide 155 without a remainder is 5. So the first calculation step would look like:

155 ÷ 5 = 31

Now we repeat this action until the result equals 1:

31 ÷ 31 = 1

Now we have all the Prime Factors for number 155. It is: 5, 31

Prime Factor Tree of 155

We may also express the prime factorization of 155 as a Factor Tree:

See Also

About "Prime Factorization" Calculator

This calculator will perform a Prime Factorization of any given number and will show all its Prime Factors. For example, it can help you find out what is the Prime Factorization of 155? (The answer is: 5, 31). Pick the number for factorization (e.g. '155'). After that hit the 'Calculate' button.
Prime factors are the positive integers having only two factors - 1 and the number itself

Prime Factorization Table

NumberPrime Factors
22 × 5 × 7
3, 47
2, 71
11, 13
24 × 32
5, 29
2, 73
3 × 72
22 × 37
149
2 × 3 × 52
151
23 × 19
32 × 17
2, 7, 11
5, 31
22 × 3 × 13
157
2, 79
3, 53
25 × 5
7, 23
2 × 34
163
22 × 41
3, 5, 11
2, 83
167
23 × 3 × 7
132

FAQ

What is the Prime Factorization of 155?

Prime Factors of 155: 5, 31

How many prime factors does 155 have?

Number 155 has 2 Prime Factors