Q: What are the prime factors of the number 45,155,253?

 A: 3, 11, 13, 67, 1571

Why are those the prime factors of the number 45,155,253?

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 45,155,253

45,155,253
Factor Arrows
315,051,751
Factor Arrows
111,368,341
Factor Arrows
13105,257
Factor Arrows
671,571

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:

3, 11, 13, 67, 1571

We can check our work by multiplying all of the prime factors together: 3 x 11 x 13 x 67 x 1,571 = 45,155,253

This can also be written as 31 x 111 x 131 x 671 x 1,5711 = 45,155,253

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


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