Q: What are the prime factors of the number 156,046,656?

 A: 2, 3, 41, 43, 461

Why are those the prime factors of the number 156,046,656?

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 156,046,656

156,046,656
Factor Arrows
278,023,328
Factor Arrows
239,011,664
Factor Arrows
219,505,832
Factor Arrows
29,752,916
Factor Arrows
24,876,458
Factor Arrows
22,438,229
Factor Arrows
3812,743
Factor Arrows
4119,823
Factor Arrows
43461

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, 41, 43, 461

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 2 x 2 x 3 x 41 x 43 x 461 = 156,046,656

This can also be written as 26 x 31 x 411 x 431 x 4611 = 156,046,656

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


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