Q: What are the prime factors of the number 253,301,162?

 A: 2, 23, 71, 77557

Why are those the prime factors of the number 253,301,162?

Prime factors are the prime numbers that can be multipled together to equal the original number. You find the factors by dividing by prime numbers. It is best shown by creating a Factor Tree.

Factor Tree for the number 253,301,162

253,301,162
Factor Arrows
2126,650,581
Factor Arrows
235,506,547
Factor Arrows
7177,557

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:

2, 23, 71, 77557

We can check our work by multiplying all of the prime factors together: 2 x 23 x 71 x 77,557 = 253,301,162

This can also be written as 21 x 231 x 711 x 77,5571 = 253,301,162

If you would like to know more, or need additional explanation, please review our prime factorization explanation.


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