Q: What are the prime factors of the number 155,504,148?

 A: 2, 3, 29, 149, 2999

Why are those the prime factors of the number 155,504,148?

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 155,504,148

155,504,148
Factor Arrows
277,752,074
Factor Arrows
238,876,037
Factor Arrows
312,958,679
Factor Arrows
29446,851
Factor Arrows
1492,999

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, 29, 149, 2999

We can check our work by multiplying all of the prime factors together: 2 x 2 x 3 x 29 x 149 x 2,999 = 155,504,148

This can also be written as 22 x 31 x 291 x 1491 x 2,9991 = 155,504,148

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


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