Q: What are the prime factors of the number 153,400,000?

 A: 2, 5, 13, 59

Why are those the prime factors of the number 153,400,000?

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 153,400,000

153,400,000
Factor Arrows
276,700,000
Factor Arrows
238,350,000
Factor Arrows
219,175,000
Factor Arrows
29,587,500
Factor Arrows
24,793,750
Factor Arrows
22,396,875
Factor Arrows
5479,375
Factor Arrows
595,875
Factor Arrows
519,175
Factor Arrows
53,835
Factor Arrows
5767
Factor Arrows
1359

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, 13, 59

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 5 x 5 x 5 x 13 x 59 = 153,400,000

This can also be written as 26 x 55 x 131 x 591 = 153,400,000

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


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