Q: What are the prime factors of the number 155,654,754?

 A: 2, 3, 17, 23, 43, 1543

Why are those the prime factors of the number 155,654,754?

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 155,654,754

155,654,754
Factor Arrows
277,827,377
Factor Arrows
325,942,459
Factor Arrows
171,526,027
Factor Arrows
2366,349
Factor Arrows
431,543

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, 17, 23, 43, 1543

We can check our work by multiplying all of the prime factors together: 2 x 3 x 17 x 23 x 43 x 1,543 = 155,654,754

This can also be written as 21 x 31 x 171 x 231 x 431 x 1,5431 = 155,654,754

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


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