Q: What are the prime factors of the number 45,467,456?

 A: 2, 19, 139, 269

Why are those the prime factors of the number 45,467,456?

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 45,467,456

45,467,456
Factor Arrows
222,733,728
Factor Arrows
211,366,864
Factor Arrows
25,683,432
Factor Arrows
22,841,716
Factor Arrows
21,420,858
Factor Arrows
2710,429
Factor Arrows
1937,391
Factor Arrows
139269

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, 19, 139, 269

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 19 x 139 x 269 = 45,467,456

This can also be written as 26 x 191 x 1391 x 2691 = 45,467,456

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


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