Q: What are the prime factors of the number 154,141,200?

 A: 2, 3, 5, 47, 911

Why are those the prime factors of the number 154,141,200?

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 154,141,200

154,141,200
Factor Arrows
277,070,600
Factor Arrows
238,535,300
Factor Arrows
219,267,650
Factor Arrows
29,633,825
Factor Arrows
33,211,275
Factor Arrows
31,070,425
Factor Arrows
5214,085
Factor Arrows
542,817
Factor Arrows
47911

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, 5, 47, 911

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 5 x 5 x 47 x 911 = 154,141,200

This can also be written as 24 x 32 x 52 x 471 x 9111 = 154,141,200

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


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