Q: What are the prime factors of the number 45,113,000?

 A: 2, 5, 197, 229

Why are those the prime factors of the number 45,113,000?

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 45,113,000

45,113,000
Factor Arrows
222,556,500
Factor Arrows
211,278,250
Factor Arrows
25,639,125
Factor Arrows
51,127,825
Factor Arrows
5225,565
Factor Arrows
545,113
Factor Arrows
197229

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, 5, 197, 229

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 5 x 5 x 5 x 197 x 229 = 45,113,000

This can also be written as 23 x 53 x 1971 x 2291 = 45,113,000

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


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