Q: What are the prime factors of the number 154,124,560?

 A: 2, 5, 29, 31, 2143

Why are those the prime factors of the number 154,124,560?

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 154,124,560

154,124,560
Factor Arrows
277,062,280
Factor Arrows
238,531,140
Factor Arrows
219,265,570
Factor Arrows
29,632,785
Factor Arrows
51,926,557
Factor Arrows
2966,433
Factor Arrows
312,143

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, 29, 31, 2143

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 5 x 29 x 31 x 2,143 = 154,124,560

This can also be written as 24 x 51 x 291 x 311 x 2,1431 = 154,124,560

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


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