Q: What are the prime factors of the number 61,812,750?

 A: 2, 3, 5, 73, 1129

Why are those the prime factors of the number 61,812,750?

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 61,812,750

61,812,750
Factor Arrows
230,906,375
Factor Arrows
310,302,125
Factor Arrows
52,060,425
Factor Arrows
5412,085
Factor Arrows
582,417
Factor Arrows
731,129

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, 5, 73, 1129

We can check our work by multiplying all of the prime factors together: 2 x 3 x 5 x 5 x 5 x 73 x 1,129 = 61,812,750

This can also be written as 21 x 31 x 53 x 731 x 1,1291 = 61,812,750

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


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