Q: What are the prime factors of the number 152,774,258?

 A: 2, 7, 13, 37, 463

Why are those the prime factors of the number 152,774,258?

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 152,774,258

152,774,258
Factor Arrows
276,387,129
Factor Arrows
710,912,447
Factor Arrows
71,558,921
Factor Arrows
7222,703
Factor Arrows
1317,131
Factor Arrows
37463

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, 7, 13, 37, 463

We can check our work by multiplying all of the prime factors together: 2 x 7 x 7 x 7 x 13 x 37 x 463 = 152,774,258

This can also be written as 21 x 73 x 131 x 371 x 4631 = 152,774,258

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


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