Q: What are the prime factors of the number 154,542,400?

 A: 2, 5, 96589

Why are those the prime factors of the number 154,542,400?

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 154,542,400

154,542,400
Factor Arrows
277,271,200
Factor Arrows
238,635,600
Factor Arrows
219,317,800
Factor Arrows
29,658,900
Factor Arrows
24,829,450
Factor Arrows
22,414,725
Factor Arrows
5482,945
Factor Arrows
596,589

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, 96589

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 5 x 5 x 96,589 = 154,542,400

This can also be written as 26 x 52 x 96,5891 = 154,542,400

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


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