Q: What are the prime factors of the number 45,370,368?

 A: 2, 3, 547

Why are those the prime factors of the number 45,370,368?

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 45,370,368

45,370,368
Factor Arrows
222,685,184
Factor Arrows
211,342,592
Factor Arrows
25,671,296
Factor Arrows
22,835,648
Factor Arrows
21,417,824
Factor Arrows
2708,912
Factor Arrows
2354,456
Factor Arrows
2177,228
Factor Arrows
288,614
Factor Arrows
244,307
Factor Arrows
314,769
Factor Arrows
34,923
Factor Arrows
31,641
Factor Arrows
3547

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, 3, 547

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 2 x 3 x 3 x 3 x 3 x 547 = 45,370,368

This can also be written as 210 x 34 x 5471 = 45,370,368

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


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