Q: What are the prime factors of the number 154,355,456?

 A: 2, 602951

Why are those the prime factors of the number 154,355,456?

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 154,355,456

154,355,456
Factor Arrows
277,177,728
Factor Arrows
238,588,864
Factor Arrows
219,294,432
Factor Arrows
29,647,216
Factor Arrows
24,823,608
Factor Arrows
22,411,804
Factor Arrows
21,205,902
Factor Arrows
2602,951

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, 602951

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 602,951 = 154,355,456

This can also be written as 28 x 602,9511 = 154,355,456

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


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