Q: What are the prime factors of the number 61,437,456?

 A: 2, 3, 17, 25097

Why are those the prime factors of the number 61,437,456?

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 61,437,456

61,437,456
Factor Arrows
230,718,728
Factor Arrows
215,359,364
Factor Arrows
27,679,682
Factor Arrows
23,839,841
Factor Arrows
31,279,947
Factor Arrows
3426,649
Factor Arrows
1725,097

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, 17, 25097

We can check our work by multiplying all of the prime factors together: 2 x 2 x 2 x 2 x 3 x 3 x 17 x 25,097 = 61,437,456

This can also be written as 24 x 32 x 171 x 25,0971 = 61,437,456

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


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