Q: What are the prime factors of the number 155,037,087?

 A: 3, 863, 19961

Why are those the prime factors of the number 155,037,087?

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 155,037,087

155,037,087
Factor Arrows
351,679,029
Factor Arrows
317,226,343
Factor Arrows
86319,961

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:

3, 863, 19961

We can check our work by multiplying all of the prime factors together: 3 x 3 x 863 x 19,961 = 155,037,087

This can also be written as 32 x 8631 x 19,9611 = 155,037,087

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


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