Q: What are the prime factors of the number 157,254,460?

 A: 2, 5, 11, 97, 7369

Why are those the prime factors of the number 157,254,460?

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 157,254,460

157,254,460
Factor Arrows
278,627,230
Factor Arrows
239,313,615
Factor Arrows
57,862,723
Factor Arrows
11714,793
Factor Arrows
977,369

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, 5, 11, 97, 7369

We can check our work by multiplying all of the prime factors together: 2 x 2 x 5 x 11 x 97 x 7,369 = 157,254,460

This can also be written as 22 x 51 x 111 x 971 x 7,3691 = 157,254,460

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


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