Q: What are the prime factors of the number 147,015,603?

 A: 3, 7, 79, 109, 271

Why are those the prime factors of the number 147,015,603?

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 147,015,603

147,015,603
Factor Arrows
349,005,201
Factor Arrows
316,335,067
Factor Arrows
72,333,581
Factor Arrows
7929,539
Factor Arrows
109271

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, 7, 79, 109, 271

We can check our work by multiplying all of the prime factors together: 3 x 3 x 7 x 79 x 109 x 271 = 147,015,603

This can also be written as 32 x 71 x 791 x 1091 x 2711 = 147,015,603

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


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